query_id
int64
0
2.15k
database_id
stringclasses
40 values
table_id
listlengths
1
4
query
stringlengths
22
185
answer
stringlengths
22
608
difficulty
stringclasses
4 values
800
address_1
[ "city", "student" ]
Give the country with the fewest students.
SELECT T1.country FROM City AS T1 JOIN Student AS T2 ON T1.city_code = T2.city_code GROUP BY T1.country ORDER BY count(*) LIMIT 1
extra
801
address_1
[ "city", "student" ]
Show names for all cities where at least three students live.
SELECT T1.city_name FROM City AS T1 JOIN Student AS T2 ON T1.city_code = T2.city_code GROUP BY T1.city_code HAVING count(*) >= 3
medium
802
address_1
[ "city", "student" ]
What are the names of cities with at least three students?
SELECT T1.city_name FROM City AS T1 JOIN Student AS T2 ON T1.city_code = T2.city_code GROUP BY T1.city_code HAVING count(*) >= 3
medium
803
address_1
[ "city", "student" ]
Show all states where more than 5 students live.
SELECT T1.state FROM City AS T1 JOIN Student AS T2 ON T1.city_code = T2.city_code GROUP BY T1.state HAVING count(*) > 5
medium
804
address_1
[ "city", "student" ]
What are the states with more than 5 students?
SELECT T1.state FROM City AS T1 JOIN Student AS T2 ON T1.city_code = T2.city_code GROUP BY T1.state HAVING count(*) > 5
medium
805
address_1
[ "city", "student" ]
Show ids for all students who don't live in USA.
SELECT StuID FROM Student EXCEPT SELECT StuID FROM City AS T1 JOIN Student AS T2 ON T1.city_code = T2.city_code WHERE country = "USA"
hard
806
address_1
[ "city", "student" ]
What the the student ids for students not living in the USA?
SELECT StuID FROM Student EXCEPT SELECT StuID FROM City AS T1 JOIN Student AS T2 ON T1.city_code = T2.city_code WHERE country = "USA"
hard
807
address_1
[ "city", "student" ]
Show ids for all female (sex is F) students living in state PA.
SELECT StuID FROM City AS T1 JOIN Student AS T2 ON T1.city_code = T2.city_code WHERE T1.state = "PA" AND T2.sex = 'F'
medium
808
address_1
[ "city", "student" ]
What are the student ids for female students in the state of PA?
SELECT StuID FROM City AS T1 JOIN Student AS T2 ON T1.city_code = T2.city_code WHERE T1.state = "PA" AND T2.sex = 'F'
medium
809
address_1
[ "city", "student" ]
Show ids for all male students living outside of USA.
SELECT StuID FROM City AS T1 JOIN Student AS T2 ON T1.city_code = T2.city_code WHERE T2.sex = 'M' AND T1.country != "USA"
medium
810
address_1
[ "city", "student" ]
What are the ids for male students not in the USA?
SELECT StuID FROM City AS T1 JOIN Student AS T2 ON T1.city_code = T2.city_code WHERE T2.sex = 'M' AND T1.country != "USA"
medium
811
address_1
[ "direct_distance" ]
What is the distance between BAL and CHI?
SELECT distance FROM Direct_distance WHERE city1_code = "BAL" AND city2_code = "CHI"
medium
812
address_1
[ "direct_distance" ]
Give the distance between BAL and CHI?
SELECT distance FROM Direct_distance WHERE city1_code = "BAL" AND city2_code = "CHI"
medium
813
address_1
[ "city", "direct_distance" ]
Show me the distance between Boston and Newark.
SELECT distance FROM Direct_distance AS T1 JOIN City AS T2 ON T1.city1_code = T2.city_code JOIN City AS T3 ON T1.city2_code = T3.city_code WHERE T2.city_name = "Boston" AND T3.city_name = "Newark"
hard
814
address_1
[ "city", "direct_distance" ]
What is the distance between Boston and Newark?
SELECT distance FROM Direct_distance AS T1 JOIN City AS T2 ON T1.city1_code = T2.city_code JOIN City AS T3 ON T1.city2_code = T3.city_code WHERE T2.city_name = "Boston" AND T3.city_name = "Newark"
hard
815
address_1
[ "direct_distance" ]
What is the average, minimum, maximum distance between two cities?
SELECT avg(distance) , min(distance) , max(distance) FROM Direct_distance
medium
816
address_1
[ "direct_distance" ]
Give the average, minimum, and maximum distances between two cities.
SELECT avg(distance) , min(distance) , max(distance) FROM Direct_distance
medium
817
address_1
[ "direct_distance" ]
Show me the city code of two cities with maximum distance.
SELECT city1_code , city2_code FROM Direct_distance ORDER BY distance DESC LIMIT 1
medium
818
address_1
[ "direct_distance" ]
What are the city codes of the cities with the maximum distance?
SELECT city1_code , city2_code FROM Direct_distance ORDER BY distance DESC LIMIT 1
medium
819
address_1
[ "direct_distance" ]
Show me the city code of two cities with a distance greater than the average.
SELECT city1_code , city2_code FROM Direct_distance WHERE distance > (SELECT avg(distance) FROM Direct_distance)
extra
820
address_1
[ "direct_distance" ]
What are the city codes of cities with distance greater than average?
SELECT city1_code , city2_code FROM Direct_distance WHERE distance > (SELECT avg(distance) FROM Direct_distance)
extra
821
address_1
[ "direct_distance" ]
Show me the city code of two cities with a distance less than 1000.
SELECT city1_code , city2_code FROM Direct_distance WHERE distance < 1000
medium
822
address_1
[ "direct_distance" ]
What are the city codes corresponding to cities with distances less than 1000?
SELECT city1_code , city2_code FROM Direct_distance WHERE distance < 1000
medium
823
address_1
[ "direct_distance" ]
What is the total distance between city BAL and all other cities.
SELECT sum(distance) FROM Direct_distance WHERE city1_code = "BAL"
easy
824
address_1
[ "direct_distance" ]
What is the sum of distances between BAL and other cities?
SELECT sum(distance) FROM Direct_distance WHERE city1_code = "BAL"
easy
825
address_1
[ "city", "direct_distance" ]
What is the average distance between Boston and all other cities.
SELECT avg(distance) FROM Direct_distance AS T1 JOIN City AS T2 ON T1.city1_code = T2.city_code WHERE T2.city_name = "Boston"
medium
826
address_1
[ "city", "direct_distance" ]
Give the average distance between Boston and other cities.
SELECT avg(distance) FROM Direct_distance AS T1 JOIN City AS T2 ON T1.city1_code = T2.city_code WHERE T2.city_name = "Boston"
medium
827
address_1
[ "city", "direct_distance" ]
What is the name of the city closest to Chicago?
SELECT T3.city_name FROM Direct_distance AS T1 JOIN City AS T2 ON T1.city1_code = T2.city_code JOIN City AS T3 ON T1.city2_code = T3.city_code WHERE T2.city_name = "Chicago" ORDER BY distance LIMIT 1
extra
828
address_1
[ "city", "direct_distance" ]
Give the name of the nearest city to Chicago.
SELECT T3.city_name FROM Direct_distance AS T1 JOIN City AS T2 ON T1.city1_code = T2.city_code JOIN City AS T3 ON T1.city2_code = T3.city_code WHERE T2.city_name = "Chicago" ORDER BY distance LIMIT 1
extra
829
address_1
[ "city", "direct_distance" ]
What is the name of the city furthest to Boston?
SELECT T3.city_name FROM Direct_distance AS T1 JOIN City AS T2 ON T1.city1_code = T2.city_code JOIN City AS T3 ON T1.city2_code = T3.city_code WHERE T2.city_name = "Boston" ORDER BY distance DESC LIMIT 1
extra
830
address_1
[ "city", "direct_distance" ]
Give the city name of the city with greatest distance from Boston.
SELECT T3.city_name FROM Direct_distance AS T1 JOIN City AS T2 ON T1.city1_code = T2.city_code JOIN City AS T3 ON T1.city2_code = T3.city_code WHERE T2.city_name = "Boston" ORDER BY distance DESC LIMIT 1
extra
831
address_1
[ "direct_distance" ]
Show all city codes and the total distance to all other cities.
SELECT city1_code , sum(distance) FROM Direct_distance GROUP BY city1_code
medium
832
address_1
[ "direct_distance" ]
For each city, what is the the city code and sum of distances from each?
SELECT city1_code , sum(distance) FROM Direct_distance GROUP BY city1_code
medium
833
address_1
[ "city", "direct_distance" ]
Show all city names and the average distance to all other cities.
SELECT T2.city_name , avg(distance) FROM Direct_distance AS T1 JOIN City AS T2 ON T1.city1_code = T2.city_code GROUP BY T1.city1_code
medium
834
address_1
[ "city", "direct_distance" ]
What are the city name and average distances from each city?
SELECT T2.city_name , avg(distance) FROM Direct_distance AS T1 JOIN City AS T2 ON T1.city1_code = T2.city_code GROUP BY T1.city1_code
medium
835
address_1
[ "student", "direct_distance" ]
How far do Linda (first name) Smith (last name) and Tracy (first name) Kim (last name) live?
SELECT distance FROM Direct_distance AS T1 JOIN Student AS T2 ON T1.city1_code = T2.city_code JOIN Student AS T3 ON T1.city2_code = T3.city_code WHERE T2.Fname = "Linda" AND T2.Lname = "Smith" AND T3.Fname = "Tracy" AND T3.Lname = "Kim"
hard
836
address_1
[ "student", "direct_distance" ]
What is the distance between the cities where Linda Smith and Tracy Kim live?
SELECT distance FROM Direct_distance AS T1 JOIN Student AS T2 ON T1.city1_code = T2.city_code JOIN Student AS T3 ON T1.city2_code = T3.city_code WHERE T2.Fname = "Linda" AND T2.Lname = "Smith" AND T3.Fname = "Tracy" AND T3.Lname = "Kim"
hard
837
address_1
[ "student", "direct_distance" ]
What is the first name and last name of the student living furthest to Linda Smith?
SELECT T3.Fname , T3.Lname FROM Direct_distance AS T1 JOIN Student AS T2 ON T1.city1_code = T2.city_code JOIN Student AS T3 ON T1.city2_code = T3.city_code WHERE T2.Fname = "Linda" AND T2.Lname = "Smith" ORDER BY distance DESC LIMIT 1
extra
838
address_1
[ "student", "direct_distance" ]
What is the full name of the student who lives furthest from Linda Smith?
SELECT T3.Fname , T3.Lname FROM Direct_distance AS T1 JOIN Student AS T2 ON T1.city1_code = T2.city_code JOIN Student AS T3 ON T1.city2_code = T3.city_code WHERE T2.Fname = "Linda" AND T2.Lname = "Smith" ORDER BY distance DESC LIMIT 1
extra
839
address_1
[ "city", "student" ]
Which state does the student whose first name is Linda live in?
SELECT state FROM Student AS T1 JOIN City AS T2 ON T1.city_code = T2.city_code WHERE T1.Fname = "Linda"
medium
840
address_1
[ "city", "student" ]
Give the state that the student with first name Linda lives in.
SELECT state FROM Student AS T1 JOIN City AS T2 ON T1.city_code = T2.city_code WHERE T1.Fname = "Linda"
medium
841
boat_1
[ "sailors" ]
Return all details of sailors who are older than 30.
SELECT * FROM Sailors WHERE age > 30
easy
842
boat_1
[ "sailors" ]
What can you tell me about sailors who are older than age 30?
SELECT * FROM Sailors WHERE age > 30
easy
843
boat_1
[ "sailors" ]
Return name and age for sailors who are younger than 30.
SELECT name , age FROM Sailors WHERE age < 30
medium
844
boat_1
[ "sailors" ]
What is the name and age of every sailor who is younger than age 30?
SELECT name , age FROM Sailors WHERE age < 30
medium
845
boat_1
[ "reserves" ]
Find boats reserved by Sailor with id 1.
SELECT DISTINCT bid FROM Reserves WHERE sid = 1
easy
846
boat_1
[ "reserves" ]
What are the different boat ids reserved by the sailor whose id is 1?
SELECT DISTINCT bid FROM Reserves WHERE sid = 1
easy
847
boat_1
[ "reserves", "sailors" ]
Who reserved boat 102?
SELECT T1.name FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid WHERE T2.bid = 102
medium
848
boat_1
[ "reserves", "sailors" ]
What is the name of the sailor who reserved boat 102?
SELECT T1.name FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid WHERE T2.bid = 102
medium
849
boat_1
[ "reserves" ]
Return the unique boat ids (bid) of all reserved boats.
SELECT DISTINCT bid FROM Reserves
easy
850
boat_1
[ "reserves" ]
What are the ids of all boats that are reserved by someone?
SELECT DISTINCT bid FROM Reserves
easy
851
boat_1
[ "sailors" ]
What is the name of sailors whose names contain letter e?
SELECT name FROM Sailors WHERE name LIKE '%e%'
medium
852
boat_1
[ "sailors" ]
What is the name of every sailor whose name contains the letter e?
SELECT name FROM Sailors WHERE name LIKE '%e%'
medium
853
boat_1
[ "sailors" ]
return the unique ids of sailors who are older than any sailors.
SELECT DISTINCT sid FROM Sailors WHERE age > (SELECT min(age) FROM Sailors);
hard
854
boat_1
[ "sailors" ]
What is the different id of every sailor who is not the youngest?
SELECT DISTINCT sid FROM Sailors WHERE age > (SELECT min(age) FROM Sailors);
hard
855
boat_1
[ "sailors" ]
Return the unique names of sailors who are older than any sailors whose rating is larger than 7.
SELECT DISTINCT name FROM Sailors WHERE age > (SELECT min(age) FROM Sailors WHERE rating > 7);
hard
856
boat_1
[ "sailors" ]
What are the different names of sailors who are older than some other sailor with a rating larger than 7?
SELECT DISTINCT name FROM Sailors WHERE age > (SELECT min(age) FROM Sailors WHERE rating > 7);
hard
857
boat_1
[ "reserves", "sailors" ]
Find the name and id of the sailors who reserved at least one boat?
SELECT DISTINCT T1.name , T1.sid FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid
medium
858
boat_1
[ "reserves", "sailors" ]
What is the name and id of every sailor who reserved one or more boats?
SELECT DISTINCT T1.name , T1.sid FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid
medium
859
boat_1
[ "reserves", "sailors" ]
Find the id and name of the sailors who reserved more than one boat.
SELECT DISTINCT T1.name , T1.sid FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid GROUP BY T2.sid HAVING COUNT(*) > 1
medium
860
boat_1
[ "sailors", "reserves" ]
What are the different names of sailors who reserved two or more boats ?
select distinct t1.name , t1.sid from sailors as t1 join reserves as t2 on t1.sid = t2.sid group by t2.sid having count(*) >= 2
medium
861
boat_1
[ "reserves", "boats" ]
Find the id of Sailors (sid) that reserved red or blue boat.
SELECT DISTINCT T2.sid FROM Boats AS T1 JOIN Reserves AS T2 ON T1.bid = T2.bid WHERE T1.color = 'red' OR T1.color = "blue"
hard
862
boat_1
[ "reserves", "boats" ]
What are the sids for sailors who reserved red or blue boats?
SELECT DISTINCT T2.sid FROM Boats AS T1 JOIN Reserves AS T2 ON T1.bid = T2.bid WHERE T1.color = 'red' OR T1.color = "blue"
hard
863
boat_1
[ "reserves", "sailors", "boats" ]
Find the name and id of Sailors (sid) that reserved red or blue boat.
SELECT DISTINCT T2.sid , T3.name FROM Boats AS T1 JOIN Reserves AS T2 ON T1.bid = T2.bid JOIN Sailors AS T3 ON T2.sid = T3.sid WHERE T1.color = 'red' OR T1.color = "blue"
extra
864
boat_1
[ "reserves", "sailors", "boats" ]
What are the names and ids of sailors who reserved red or blue boats?
SELECT DISTINCT T2.sid , T3.name FROM Boats AS T1 JOIN Reserves AS T2 ON T1.bid = T2.bid JOIN Sailors AS T3 ON T2.sid = T3.sid WHERE T1.color = 'red' OR T1.color = "blue"
extra
865
boat_1
[ "reserves", "boats" ]
Find the id of Sailors (sid) that reserved red and blue boat.
SELECT DISTINCT T2.sid FROM Boats AS T1 JOIN Reserves AS T2 ON T1.bid = T2.bid WHERE T1.color = 'red' INTERSECT SELECT DISTINCT T2.sid FROM Boats AS T1 JOIN Reserves AS T2 ON T1.bid = T2.bid WHERE T1.color = "blue"
extra
866
boat_1
[ "reserves", "boats" ]
What are the ids of sailors who reserved red and blue boats?
SELECT DISTINCT T2.sid FROM Boats AS T1 JOIN Reserves AS T2 ON T1.bid = T2.bid WHERE T1.color = 'red' INTERSECT SELECT DISTINCT T2.sid FROM Boats AS T1 JOIN Reserves AS T2 ON T1.bid = T2.bid WHERE T1.color = "blue"
extra
867
boat_1
[ "reserves", "sailors", "boats" ]
Find the name and id of Sailors (sid) that reserved red and blue boat.
SELECT DISTINCT T2.sid , T3.name FROM Boats AS T1 JOIN Reserves AS T2 ON T1.bid = T2.bid JOIN Sailors AS T3 ON T2.sid = T3.sid WHERE T1.color = 'red' INTERSECT SELECT DISTINCT T2.sid , T3.name FROM Boats AS T1 JOIN Reserves AS T2 ON T1.bid = T2.bid JOIN Sailors AS T3 ON T2.sid = T3.sid WHERE T1.color = "blue"
extra
868
boat_1
[ "reserves", "sailors", "boats" ]
What are the names and ids of sailors who reserved red and blue boats?
SELECT DISTINCT T2.sid , T3.name FROM Boats AS T1 JOIN Reserves AS T2 ON T1.bid = T2.bid JOIN Sailors AS T3 ON T2.sid = T3.sid WHERE T1.color = 'red' INTERSECT SELECT DISTINCT T2.sid , T3.name FROM Boats AS T1 JOIN Reserves AS T2 ON T1.bid = T2.bid JOIN Sailors AS T3 ON T2.sid = T3.sid WHERE T1.color = "blue"
extra
869
boat_1
[ "reserves", "sailors" ]
What is the ids of sailors that haven’t reserved a boat?
SELECT sid FROM Sailors EXCEPT SELECT sid FROM Reserves
hard
870
boat_1
[ "reserves", "sailors" ]
What are the ids of sailors who have not reserved a boat?
SELECT sid FROM Sailors EXCEPT SELECT sid FROM Reserves
hard
871
boat_1
[ "reserves", "sailors" ]
what is the name and id of sailors who do not have a reservation of a boat?
SELECT sid , name FROM Sailors EXCEPT SELECT T1.sid , T1.name FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid
extra
872
boat_1
[ "reserves", "sailors" ]
What are the names and ids of all sailors who do not have boat reservations?
SELECT sid , name FROM Sailors EXCEPT SELECT T1.sid , T1.name FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid
extra
873
boat_1
[ "reserves", "sailors" ]
Find id for the sailors who do not have a reservation of a boat?
SELECT sid FROM Sailors EXCEPT SELECT T1.sid FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid
hard
874
boat_1
[ "reserves", "sailors" ]
What is id about sailors who do not have boat reservations?
SELECT sid FROM Sailors EXCEPT SELECT T1.sid FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid
hard
875
boat_1
[ "reserves", "sailors" ]
What is the name of the sailors who reserved boat with id 103?
SELECT DISTINCT T1.name FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid WHERE T2.bid = 103
medium
876
boat_1
[ "reserves", "sailors" ]
Find the name of the sailors who reserved boat with id 103.
SELECT DISTINCT T1.name FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid WHERE T2.bid = 103
medium
877
boat_1
[ "sailors" ]
What is the name of all sailors whose rating is higher than any sailor named Luis?
SELECT name FROM Sailors WHERE rating > (SELECT min(rating) FROM Sailors WHERE name = 'Luis')
hard
878
boat_1
[ "sailors" ]
What are the sailors' names, the ones whose rating is higher than any sailor named Luis?
SELECT name FROM Sailors WHERE rating > (SELECT min(rating) FROM Sailors WHERE name = 'Luis')
hard
879
boat_1
[ "sailors" ]
What is the name of all sailors whose rating is higher than all sailors named Luis?
SELECT name FROM Sailors WHERE rating > (SELECT max(rating) FROM Sailors WHERE name = 'Luis')
hard
880
boat_1
[ "sailors" ]
What are the names of all sailors with a higher rating than every sailor named Luis?
SELECT name FROM Sailors WHERE rating > (SELECT max(rating) FROM Sailors WHERE name = 'Luis')
hard
881
boat_1
[ "reserves", "sailors" ]
what is the name and id of every sailor who has a rating greater than 2 and reserved a boat.
SELECT DISTINCT T1.name , T1.sid FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid WHERE T1.rating > 2
medium
882
boat_1
[ "reserves", "sailors" ]
What are the names and ids of all sailors who have a rating of at least 3 and reserved a boat?
SELECT DISTINCT T1.name , T1.sid FROM Sailors AS T1 JOIN Reserves AS T2 ON T1.sid = T2.sid WHERE T1.rating > 2
medium
883
boat_1
[ "sailors" ]
Find the name and age of the oldest sailor.
SELECT name , age FROM Sailors WHERE age = ( SELECT max(age) FROM Sailors )
extra
884
boat_1
[ "sailors" ]
What is the name and age of the sailor with maximum age?
SELECT name , age FROM Sailors WHERE age = ( SELECT max(age) FROM Sailors )
extra
885
boat_1
[ "sailors" ]
how many sailors in total?
SELECT COUNT(*) FROM Sailors
easy
886
boat_1
[ "sailors" ]
How many sailors exist?
SELECT COUNT(*) FROM Sailors
easy
887
boat_1
[ "sailors" ]
What is the average age of sailors whose rating is 7?
SELECT AVG(age) FROM Sailors WHERE rating = 7
easy
888
boat_1
[ "sailors" ]
What is average age of all sailors who have a rating of 7?
SELECT AVG(age) FROM Sailors WHERE rating = 7
easy
889
boat_1
[ "sailors" ]
How many sailors whose name starts with letter D exist ?
select count(*) from sailors where name like 'd%'
medium
890
boat_1
[ "sailors" ]
What is the count of the sailors whose name starts with letter D ?
select count(*) from sailors where name like 'd%'
medium
891
boat_1
[ "sailors" ]
What are the average rating and max age of all sailors?
SELECT AVG(rating) , MAX(age) FROM Sailors
medium
892
boat_1
[ "sailors" ]
Find the average rating and largest age for the sailors
SELECT AVG(rating) , MAX(age) FROM Sailors
medium
893
boat_1
[ "reserves" ]
Find the number of reservations for each boat.
SELECT bid , count(*) FROM Reserves GROUP BY bid
medium
894
boat_1
[ "reserves" ]
How many reservations exist for each boat?
SELECT bid , count(*) FROM Reserves GROUP BY bid
medium
895
boat_1
[ "reserves" ]
Find the number of reservations for each boat with id greater than 50.
SELECT bid , count(*) FROM Reserves GROUP BY bid HAVING bid > 50
medium
896
boat_1
[ "reserves" ]
How many reservations exist for each boat with an id greater than 50?
SELECT bid , count(*) FROM Reserves GROUP BY bid HAVING bid > 50
medium
897
boat_1
[ "reserves" ]
Find the number of reservations for each boat with more than 1 reservation.
SELECT bid , count(*) FROM Reserves GROUP BY bid HAVING count(*) > 1
medium
898
boat_1
[ "reserves" ]
How many reservations exist for each boat that has more than 1 reservation already?
SELECT bid , count(*) FROM Reserves GROUP BY bid HAVING count(*) > 1
medium
899
boat_1
[ "reserves" ]
Find the number of reservations by sailors with id greater than 1 for each boat.
SELECT bid , count(*) FROM Reserves WHERE sid > 1 GROUP BY bid
medium