If the left and right image contains a total of three legs and two knee braces.
return left image ;return right image ;return legs of #1 ;return legs of #2 ;return the  number of  #3 ;return the  number of  #4 ;return the  sum of #5 and #6 ;return if  #7 is equal to  three ;return knee braces of #1 ;return knee braces of #2 ;return the  number of  #9 ;return the  number of  #10 ;return the  sum of #11 and #12 ;return if  #13 is equal to  two ;return if  both  #8 and #13 is true
['select', 'select', 'project', 'project', 'aggregate', 'aggregate', 'arithmetic', 'boolean', 'project', 'project', 'aggregate', 'aggregate', 'arithmetic', 'boolean', 'boolean']