There is a small blue ball next to the big yellow ball, is there any other yellow balls?
return balls ;return #1 that are small ;return #2 that are blue ;return #1 that are yellow ;return #4 that are big ;return #5 that is next to #3 ;return #4 besides  #6 ;return if  there are any  #7
['select', 'filter', 'filter', 'filter', 'filter', 'filter', 'discard', 'boolean']