If in at least one image there is a floating seal with crab in his mouth.
return seal ;return #1 that is floating ;return mouth of #2 ;return crab ;return #4 in  #3 ;return images of #5 ;return the  number of  #6 ;return if  #7 is at least one
['select', 'filter', 'project', 'select', 'filter', 'project', 'aggregate', 'boolean']