If the left image contains a stack of four pillows and the right image contains a stack of two pillows.
return the  left image  ;return pillows  in  #1 ;return #2 in  a  stack  ;return number of  #3 ;return if  #4 is equal to  four ;return the  right image  ;return pillows  in  #6 ;return #7 in  a  stack  ;return number of  #8 ;return if  #9 is equal to  two ;return if  both  #5 and #10 are true
['select', 'project', 'filter', 'aggregate', 'boolean', 'select', 'project', 'filter', 'aggregate', 'boolean', 'boolean']