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[ "When Hart then ordered the whole Raw roster to stand guard at the ringside and stage areas during the main event , Nexus attacked Hart backstage by forcing him into a limousine and crashing it into other vehicles .", "The Nexus then attacked Hart , and threw him into a limo ." ]
[ "Barrett chose Cena and declared that if he does n't win the title at the pay-per-view , Cena will be fired , but if he does , Cena will be relieved of all of his responsibilities to Nexus .", "He said if Cena did n't make sure he won , Cena would be fired from the WWE but if Barrett did win , Cena would be able to leave the Nexus ." ]
[ "Paul Michael Glaser ( born March 25 , 1943 ) is an American actor and director perhaps best known for his role as Detective David Starsky on the 1970s television series , Starsky and Hutch .", "Paul Michael Glaser ( born March 25 , 1943 ) is an American actor and director ." ]
[ "He also directed episodes of several well-known TV series , including Miami Vice , Robbery Homicide Division and Judging Amy .", "He also directed episodes of the series : Starsky and Hutch , Miami Vice , Otherworld , The Agency , Mister Sterling , Robbery Homicide Division , Judging Amy , Third Watch , and many more ." ]
[ "After the series , Glaser continued to act on television and in films , and directed the 1987 movie The Running Man starring Arnold Schwarzenegger as well as the 1992 movie The Cutting Edge .", "He directed Arnold Schwarzenegger in The Running Man ( 1987 ) ." ]
[ "There are four models commonly used for hyperbolic geometry : the Klein model , the Poincaré disc model , the Poincaré half-plane model , and the Lorentz model , or hyperboloid model .", "There are three models commonly used for hyperbolic geometry : the Klein model , the Poincaré disc model , and the Lorentz model , or hyperboloid model ." ]
[ "In Euclidean geometry , the `` angle of parallelism '' is a constant ; that is , any distance between parallel lines yields an angle of parallelism equal to 90 ° .", "In Euclidean geometry , the angle of parallelism is a constant ; that is , any distance between parallel lines yields an angle of parallelism equal to 90 ° ." ]
[ "In the nineteenth century , hyperbolic geometry was extensively explored by János Bolyai and Nikolai Ivanovich Lobachevsky , after whom it sometimes is named .", "In the nineteenth century , hyperbolic geometry was explored by János Bolyai and Nikolai Ivanovich Lobachevsky , after whom it sometimes is named ." ]
[ "In this article , the two limiting lines are called asymptotic and lines sharing a common perpendicular are called ultraparallel ; the simple word parallel may apply to both .", "In this article , the two limiting lines are called asymptotic and lines that have a common perpendicular are called ultraparallel ; the simple word parallel may apply to both ." ]
[ "Because there is no precise hyperbolic analog to Euclidean parallel lines , the hyperbolic use of parallel and related terms varies among writers .", "Because there is no hyperbolic analog to Euclidean parallel lines , the hyperbolic use of parallel and related terms varies among writers ." ]
[ "In hyperbolic geometry , the angle of parallelism varies with the Π ( p ) function .", "In hyperbolic geometry , the angle of parallelism varies with the function ." ]
[ "Carl Friedrich Gauss also studied hyperbolic geometry , describing in an 1824 letter to Taurinus that he had constructed it , but did not publish his work .", "Karl Friedrich Gauss also studied hyperbolic geometry , describing in a 1824 letter to Taurinus that he had constructed it , but did not publish his work ." ]
[ "This function , described by Nikolai Ivanovich Lobachevsky , produces a unique angle of parallelism for each distance p = .", "This function , described by Nikolai Ivanovich Lobachevsky , produces a unique angle of parallelism for each distance ." ]
[ "Thus we have this modified form of the parallel postulate : In hyperbolic geometry , given any line R , and point P not on R , there are exactly two lines through P which are asymptotic to R , and infinitely many lines through P ultraparallel to R . The differences between these types of lines can also be looked at in the following way : the distance between asymptotic lines shrinks toward zero in one direction and grows without bound in the other ; the distance between ultraparallel lines ( eventually ) increases in both directions .", "Thus we have this modified form of the parallel postulate : In hyperbolic geometry , given any line l , and point P not on l , there are exactly two lines through P which are asymptotic to l , and infinitely many lines through P ultraparallel to l . The differences between these types of lines can also be looked at in the following way : the distance between asymptotic lines run to zero in one direction and grows without bound in the other ; the distance between ultraparallel lines increases in both directions ." ]
[ "An interesting property of hyperbolic geometry follows from the occurrence of more than one line parallel to R through a point P , not on R : there are two classes of non-intersecting lines .", "An interesting property of hyperbolic geometry follows from the occurrence of more than one parallel line through a point P : there are two classes of non-intersecting lines ." ]
[ "Indeed , on small scales compared to , where K is the ( constant ) Gaussian curvature of the plane , an observer would have a hard time determining whether the environment is Euclidean or hyperbolic .", "Indeed , on small scales compared to , where is the ( constant ) Gaussian curvature of the plane , an observer would have a hard time determining whether he is in the Euclidean or the hyperbolic plane ." ]
[ "Despite their names , the first three mentioned above were introduced as models of hyperbolic space by Beltrami , not by Poincaré or Klein .", "Despite the naming , the two disc models and the half-plane model were introduced as models of hyperbolic space by Beltrami , not by Poincaré or Klein ." ]
[ "Let B be the point on R such that the line PB is perpendicular to R. Consider the line x through P such that x does not intersect R , and the angle θ between PB and x counterclockwise from PB is as small as possible ; i.e. , any smaller angle will force the line to intersect R . This is called an asymptotic line in hyperbolic geometry .", "Let B be the point on l such that the line PB is perpendicular to l. Consider the line x through P such that x does not intersect l , and the angle θ between PB and x counterclockwise from PB is as small as possible ; i.e. , any smaller angle will force the line to intersect l . This is called an asymptotic line in hyperbolic geometry ." ]
[ "Models have been constructed within Euclidean geometry that obey the axioms of hyperbolic geometry , thus proving that the parallel postulate is independent of the other postulates of Euclid .", "Models have been constructed within Euclidean geometry that obey the axioms of hyperbolic geometry ." ]
[ "The parallel postulate in Euclidean geometry is equivalent to the statement that , in two-dimensional space , for any given line R and point P not on R , there is exactly one line through P that does not intersect R ; i.e. , that is parallel to R . In hyperbolic geometry there are at least two distinct lines through P which do not intersect R , so the parallel postulate is false .", "The parallel postulate in Euclidean geometry says that in two dimensional space , for any given line l and point P not on l , there is exactly one line through P that does not intersect l . This line is called parallel to l . In hyperbolic geometry there are at least two such lines through P . As they do not intersect l , the parallel postulate is false ." ]
[ "The only two lines asymptotic to R through P are x and y. All other lines through P not intersecting R , with angles greater than θ with PB , are called ultra-parallel ( or disjointly parallel ) to R. Notice that since there are an infinite number of possible angles between θ and 90 ° , and each one will determine two lines through P and disjointly parallel to R , there exist an infinite number of ultraparallel lines .", "x and y are the only two lines asymptotic to l through P. All other lines through P not intersecting l , with angles greater than θ with PB , are called ultraparallel ( or disjointly parallel ) to l. Notice that since there are an infinite number of possible angles between θ and 90 degrees , and each one will determine two lines through P and disjointly parallel to l , there exist an infinite number of ultraparallel lines ." ]
[ "In mathematics , hyperbolic geometry ( also called Lobachevskian geometry or Bolyai-Lobachevskian geometry ) is a non-Euclidean geometry , meaning that the parallel postulate of Euclidean geometry is replaced .", "In mathematics , hyperbolic geometry is a non-Euclidean geometry , meaning that the parallel postulate of Euclidean geometry is replaced ." ]
[ "Their works on hyperbolic geometry had a considerable influence on its development among later European geometers , including Witelo , Gersonides , Alfonso , John Wallis and Saccheri .", "Their works on hyperbolic geometry had a influence on its development among later European geometers , including Witelo , Alfonso and John Wallis ." ]
[ "The theorems of Alhacen , Khayyam and al-Tusi on quadrilaterals , including the Ibn al-Haytham-Lambert quadrilateral and Khayyam-Saccheri quadrilateral , were the first theorems on hyperbolic geometry .", "The theorems of Alhacen , Khayyam on quadrilaterals , were the first theorems on hyperbolic geometry ." ]
[ "As the distance gets shorter , Π ( p ) approaches 90 ° , whereas with increasing distance Π ( p ) approaches 0 ° .", "As the distance gets shorter , approaches 90 ° , whereas with increasing distance approaches 0 ° ." ]
[ "The measure of the enclosed n ball is : A number of geometers made attempts to prove the parallel postulate by assuming its negation and trying to derive a contradiction , including Proclus , Ibn al-Haytham ( Alhacen ) , Omar Khayyám , Nasir al-Din al-Tusi , Witelo , Gersonides , Alfonso , and later Giovanni Gerolamo Saccheri , John Wallis , Johann Heinrich Lambert , and Legendre .", "A number of geometers made attempts to prove the parallel postulate , including Omar Khayyám , and later Giovanni Gerolamo Saccheri , John Wallis , Lambert , and Legendre ." ]
[ "They soon split into cat-like and dog-like forms ( Feliformia and Caniformia ) .", "The group is divided into the `` cat-like '' Feliformia and the `` dog-like '' Caniformia ." ]
[ "EMI-Columbia released The Piper at the Gates of Dawn in August 1967 .", "Their first album was the Piper at the Gates of Dawn , which was released in 1967 ." ]
[ "Pink Floyd were an English rock band that achieved international acclaim with their progressive and psychedelic music .", "Pink Floyd is an English rock band that became famous in the 1960s ." ]
[ "Each of the first four tournaments was played by eight teams , divided into two groups of four .", "The first four tournaments were played by eight teams , divided into two groups of four ." ]
[ "The `` Super 6 '' teams played the three other teams that advanced from the other group .", "The `` Super 6 '' teams played the three other teams that had made it through from the other group ." ]
[ "The four teams in each group played each other in the round-robin group stage , with the top two teams in each group progressing to the semi-finals .", "The four teams in each group played each other once in the group stage ." ]
[ "India and Sri Lanka between them have made it to the finals of all World Cup tournaments in this millennium The Test-playing nations qualify automatically for the World Cup main event , while the other teams have to qualify through a series of preliminary qualifying tournaments .", "The Test-playing nations qualify automatically for the World Cup main event , while the other teams have to qualify through a series of preliminary qualifying tournaments ." ]
[ "The event is organised by the sport 's governing body , the International Cricket Council ( ICC ) , with preliminary qualification rounds leading up to a finals tournament which is held every four years .", "The event is organised by the sport 's governing body , the International Cricket Council ( ICC ) ." ]
[ "Process summary in chronological order : The format of the Cricket World Cup has changed greatly over the course of its history .", "The format of the Cricket World Cup has changed greatly over the course of its history ." ]
[ "There , competition comprised two stages , a group stage and a knock-out stage .", "A group stage and a knock-out stage ." ]
[ "The top four teams from the `` Super 8 '' round advance to the semi-finals , and the winners of the semi-finals play in the final .", "The top four teams from the `` Super 8 '' round advance to the semi-finals ." ]
[ "The teams were split into two pools , with the top three teams in each pool advancing to the Super 6 .", "The top three teams in each pool went into the Super 6 ." ]
[ "In subsequent years , international Test cricket has generally been organised as bilateral series : a multilateral Test tournament was not organised again until the quadrangular Asian Test Championship in 1999 .", "In subsequent years , international Test cricket has been generally been organised as bilateral series ." ]
[ "Teams earned points in the same way as the group stage , but carrying their points forward from previous matches against the other teams who qualified from the same group to the `` Super 8 '' stage .", "Teams also carry their points forward from the match against the other team who qualified from the same group ." ]
[ "The ICC Cricket World Cup is the international championship of One Day International ( ODI ) cricket .", "The ICC Cricket World Cup is an international cricket competition ." ]
[ "The first multilateral competition at international level was the 1912 Triangular Tournament , a Test cricket tournament played in England between all three Test-playing nations at the time : England , Australia and South Africa .", "It was a Test cricket tournament played in England between England , Australia and South Africa ." ]
[ "As they advanced , the teams carried their points forward from previous matches against other teams advancing alongside them , giving them an incentive to perform well in the group stages .", "The teams carried their points forward from the matches played against the other two who were in their group ." ]
[ "Within each group , the teams play each other in a round-robin format .", "Each team played each other once within the group ." ]
[ "Within each group , the teams will play in a round-robin format .", "Within each group each team will play each other once ." ]
[ "The tournament was further expanded in 1996 , with two groups of six teams .", "The tournament was made bigger in 1996 , with two groups of six teams ." ]
[ "Split into two pools of seven teams each , the top four teams from each group qualified for the quarter-finals .", "The teams were split into two pools ." ]
[ "In 1901 he returned to Spain and opened the Escuela Moderna ( The Modern School ) to teach middle-class children ( then ) radical social values .", "In 1901 he returned to Spain and opened la Escuela Moderna ( The Modern School ) to teach middle-class children ( then ) radical social values , the school was free ." ]
[ "The first and most notable Modern School was formed in New York City in 1911 , and then later a community was founded around a school , known as Ferrer Colony and Modern School .", "The first and most important Modern School was formed in New York City in 1911 , and then later a community was founded around a school , known as Ferrer Colony and Modern School ." ]
[ "The work was entitled The Origins and Ideals of the Modern School and was translated into English by Joseph McCabe and published by the Knickerbocker Press in 1913 .", "The book was called The Origins and Ideals of the Modern School and was translated into English by Joseph McCabe and published by the Knickerbocker Press in 1913 ." ]
[ "Francesc Ferrer i Guàrdia ( 10 January 1859 - 13 October 1909 ) ( known as Francisco Ferrer y Guardia in Spanish and often simply as Francisco Ferrer ) was a Spanish free-thinker and anarchist .", "Francesc Ferrer y Guàrdia ( 10 January 1859 - 12 October 1909 ) , ( known as Francisco Ferrer i Guardia in Englishpr shortly Francisco Ferrer ) , was a Spanish Catalan `` free-thinker '' and anarchist ." ]
[ "He was born in Alella ( a small town near Barcelona ) to Roman Catholic parents .", "He was born in Alella ( a small town near Barcelona ) ." ]
[ "Shortly after his execution , numerous supporters of Ferrer 's ideas in the United States formed what were called Modern Schools , or Ferrer Schools , modeled after la Escuela Moderna .", "After his execution , numerous supporters of Ferrer 's ideas in the United States formed what were called Modern Schools , or Ferrer Schools ." ]
[ "Following the declaration of martial law in 1909 during the Tragic Week , he was arrested and , having been found guilty after a lengthy trial , executed by firing squad at Montjuich Fortress in Barcelona on 13 October .", "When the martial law was reused in 1909 during the Tragic Week , he was arrested , convicted without any proof and executed by firing squad at Montjuich Fortress in Barcelona on 13 October ." ]
[ "Divorcing in 1899 , he remarried a wealthy Parisian teacher shortly thereafter .", "Divorcing his first wife in 1899 , he remarried a rich Parisian teacher some time after ." ]
[ "In 1906 he was arrested on suspicion of involvement with Mateu Morral 's attack on King Alfonso XIII and released uncharged over a year later .", "In 1906 he was arrested and accused of helping with Mateu Morral 's attack on King Alphonso XIII and released a year later ." ]
[ "A neutron star has a mass comparable to that of the Sun , but as it is only about 10 km ( 6 mi ) in radius , it has an average density 1 quadrillion times that of water .", "Neutron stars have a radius of about 10 kilometres ( 6 mi ) and a mass from about 1.4 to 5 times the mass of the Sun ." ]
[ "Other neutron stars are formed within close binaries .", "All other stars that go supernova become neutron stars ." ]
[ "The surface of the neutron star is made of iron .", "Neutron stars are very dense ." ]
[ "Over time , neutron stars slow down ( spin down ) because their rotating magnetic fields radiate energy ; older neutron stars may take several seconds for each revolution .", "Neutron stars have very strong magnetic fields ." ]
[ "Such spin rates are expected if the core of the original star collapses without loss of angular momentum - if the original star has a magnetic field , then this too may be conserved and concentrated in the collapse to a neutron star .", "All stars have a magnetic field ." ]
[ "Neutron stars which emit such pulses are called pulsars .", "This ` pulse ' is why they are called pulsars ." ]
[ "In particular , a nucleus is held together by the strong interaction , whereas a neutron star is held together by gravity .", "It is a very large nucleus held together by gravity ." ]
[ "Since 2006 Edmondson has concentrated increasingly on music instead of acting , forming band The Bad Shepherds and performing and writing for the Bonzo Dog Doo Dah Band .", "He made the band The Bad Shepherds and performs and writes for the Bonzo Dog Doo Dah Band ." ]
[ "Adrian Charles Edmondson sometimes known as Ade Edmondson ( born 24 January 1957 ) is a British comedian , actor , writer , musician , television presenter and director .", "Adrian Charles `` Ade '' Edmondson ( 24 January 1957 ) is in English actor and comedian ." ]
[ "Edmondson , the second of four children , was born in Bradford , West Riding of Yorkshire .", "Edmonson was born in Bradford , West Riding of Yorkshire ." ]
[ "He lives in Devon and London .", "They have houses in Devon and London ." ]
[ "Edmondson has been married to fellow comedian Jennifer Saunders since 1985 and they have three daughters and two grandchildren .", "He is married to comedienne Jennifer Saunders ." ]
[ "After World War I , Bohemia became part of the new Czechoslovakia , and Bohemian athletes competed for Czechoslovakia at the Olympics .", "Bohemian athletes competed for Czechoslovakia at the Olympics ." ]
[ "After the 1992 Summer Olympics and the dissolution of Czechoslovakia into the Czech Republic and Slovakia in 1993 , Bohemian athletes competed for the Czech Republic at the Olympics .", "After Czechoslovakia was split into the Czech Republic and Slovakia in 1993 , Bohemian athletes competed for the Czech Republic at the Olympics ." ]
[ "The team made its debut at the 1900 Summer Olympics .", "The team began taking part in the Olympics at the 1900 Summer Olympics ." ]
[ "Bohemia , an autonomous part of Austria-Hungary until 1918 , competed at some of the early modern Olympic Games .", "It was an autonomous part of Austria-Hungary until 1918 ." ]
[ "If these post-war appearances are counted , Bohemia has missed only three Olympics : the inaugural 1896 Summer Olympics , the 1904 Summer Olympics ( the first held outside Europe ) and the boycotted 1984 Summer Olympics .", "Bohemian athletes have missed only three Olympics : the first in 1896 , the 1904 Summer Olympics ( the first not to take place in Europe ) and the boycotted 1984 Summer Olympics ." ]
[ "Geotechnical engineering is the branch of civil engineering concerned with the engineering behavior of earth materials .", "Geotechnical engineering is an important subset of civil engineering dealing with engineering performance of earth materials ." ]
[ "Foundations built for above-ground structures include shallow and deep foundations .", "Geotechnical engineering uses principles of soil and rock mechanics to determine : to design : and to monitor : Foundations built for above-ground structures include shallow and deep foundations ." ]
[ "A plaque on the copper just under the figure in front declares that it is a colossal statue representing Liberty , designed by Bartholdi and built by the Paris firm of Gaget , Gauthier et Cie ( Cie is the French abbreviation analogous to Co. ) .", "A plaque on the copper just under the figure 's feet declares that it is a colossal statue representing Liberty , designed by Bartholdi and built by the Paris firm of Gaget , Gauthier et Cie ( Cie is the French abbreviation analogous to Co. ) ." ]
[ "There is a tablet placed by the New York committee that commemorates the fundraising done to build the pedestal .", "The New York committee made a plaque that commemorates the fundraising done to build the pedestal ." ]
[ "Two Americans-Pulitzer and Lazarus-and three Frenchmen-Bartholdi , Laboulaye , and Eiffel-are depicted .", "The statues stand for two Americans-Pulitzer and Lazarus-and three Frenchmen-Bartholdi , Laboulaye , and Eiffel ." ]
[ "They are the work of Maryland sculptor Phillip Ratner .", "The five statues were designed by Maryland sculptor Phillip Ratner ." ]
[ "A presentation tablet , also bearing Bartholdi 's name , declares the statue to be a gift from the people of the Republic of France that honors `` the Alliance of the two Nations in achieving the Independence of the United States of America and attests their abiding friendship . ''", "Another plaquedeclares the statue to be a gift from the people of the Republic of France that honors `` the Alliance of the two Nations in achieving the Independence of the United States of America and attests their abiding friendship . ''" ]
[ "A group of statues stands at the western end of the island , honoring those closely associated with the Statue of Liberty .", "A group of five statues is at the western end of the island ." ]
[ "There are several plaques and dedicatory tablets on or near the Statue of Liberty .", "There are several metal plaques on or near the Statue of Liberty ." ]
[ "Stephen Collins Foster ( July 4 , 1826 - January 13 , 1864 ) , known as the `` father of American music '' , was an American songwriter primarily known for his parlor and minstrel music .", "Stephen Collins Foster ( July 4 , 1826 - January 13 , 1864 ) was America 's first professional songwriter ." ]
[ "Foster was buried in the Allegheny Cemetery in Pittsburgh .", "She is buried in the Allegheny Cemetery ." ]
[ "The guppy ( Poecilia reticulata ) , also known as million fish and rainbow fish , is one of the world 's most widely distributed tropical fish , and one of the most popular freshwater aquarium fish species .", "The guppy ( Poecilia reticulata ) , also known as the millionfish , is one of the most popular freshwater aquarium fish species in the world ." ]
[ "The size of guppies vary , but males are typically 1.5-3 .5 centimetres ( 0.6-1 .4 in ) long , while females are 3-6 centimetres ( 1.2-2 .4 in ) long .", "It is a small member of the Poeciliidae family ( females 4-6 centimetres ( 1.6-2 .4 in ) long , males 2.5-3 .5 centimetres ( 1.0-1 .4 in ) long ) and like all other members of the family , is live-bearing ." ]
[ "The 1966 FIFA World Cup , the eighth staging of the World Cup , was held in England from 11 to 30 July .", "The 1966 FIFA World Cup was the eighth FIFA World Cup ." ]
[ "England beat West Germany 4-2 in the final , winning the World Cup .", "England won the final beating West Germany 4-2 ." ]
[ "With this victory England became the third host to win the tournament after Uruguay in 1930 and Italy in 1934 , and to date it is the only major championship England has won .", "England also became the first host to win since Italy won it in 1934 ." ]
[ "Art Pepper ( September 1 , 1925 - June 15 , 1982 ) , born Arthur Edward Pepper , Jr. , was an American alto saxophonist and clarinetist .", "Arthur Edward `` Art '' Pepper , Jr. ( September 1 , 1925-June 15 , 1982 ) was an American jazz alto saxophonist ." ]
[ "Some of Pepper 's most famous albums from the 1950s are Art Pepper Meets the Rhythm Section , Art Pepper + Eleven - Modern Jazz Classics , Gettin ' Together , and Smack Up .", "Some of his most famous albums are Art Pepper Meets the Rhythm Section , The Aladdin Recordings ( three volumes ) , Art Pepper + Eleven - Modern Jazz Classics , Gettin ' Together , and Smack Up ." ]
[ "Along with Chet Baker , Gerry Mulligan and Shelly Manne , and perhaps due more to geography than playing style , Pepper is often associated with the musical movement known as West Coast jazz , as contrasted with the East Coast ( or `` hot '' ) jazz associated with the likes of Charlie Parker , Dizzy Gillespie and Miles Davis .", "Along with Chet Baker , Gerry Mulligan , Shelly Manne and others , he performed and recorded a lot of very good music ." ]
[ "At the Sea Life London Aquarium , two female stingrays have delivered seven baby stingrays , although the mothers have not been near a male for two years .", "At the Sea Life London Aquarium 2 female stingrays have delivered 7 baby stingrays , although the mothers have not been near a male for 2 years ." ]
[ "Stingrays are ovoviviparous , bearing live young in `` litters '' of five to 13 .", "Stingrays are ovoviviparous , bearing live young in ` litters ' of five to thirteen ." ]
[ "Instead , the embryos absorb nutrients from a yolk sac , and after the sac is depleted , the mother provides uterine `` milk '' .", "Instead , the embryos absorb nutrients from a yolk sac , and after the sac is depleted , the mother provides uterine ` milk ' ." ]
[ "Stingrays feed primarily on molluscs , crustaceans , and occasionally on small fish .", "Stingrays feed mostly on molluscs , crustaceans , and occasionally on small fish ." ]
[ "A few members of the suborder , such as the manta rays and the porcupine ray , do not have stingers .", "A few members of the suborder , such as the manta rays and the porcupine ray , do not have stings ." ]
[ "Stingrays are a group of rays , which are cartilaginous fishes related to sharks .", "They are cartilaginous fishes related to sharks ." ]
[ "The stinger may reach a length of approximately 35 cm ( 14 in ) , and its underside has two grooves with venom glands .", "The sting may reach about 35 cm , and its underside has two grooves with venom glands ." ]
[ "The flattened bodies of stingrays allow them to effectively conceal themselves in their environment .", "The flattened bodies of stingrays allow them to hide themselves ." ]