If one sailboat has its sails furled and the other has sails unfurled.
return sailboats ;return sails  of  #1 ;return #1 where #2 is  furled ;return #1 where #2 is  unfurled ;return number of #3 ;return number of #4 ;return If #5 is  equal to one ;return If #6 is  equal to one ;return If both  #7 and #8 are  true
['select', 'project', 'comparative', 'comparative', 'aggregate', 'aggregate', 'boolean', 'boolean', 'boolean']