If one image shows balloons with dangling, curving 'strings' that are not gathered together.
return balloons ;return 'strings of #1 ;return #1 where  #2 are dangling ;return #3 where  #2 are curving ;return #4 that are gathered together ;return #4 besides  #5 ;return if  #6 is in  one image
['select', 'project', 'comparative', 'comparative', 'filter', 'discard', 'boolean']