If puppies are sleeping on their back with bellys exposed
return puppies ;return back of #1 ;return #1 that are sleeping on #2 ;return bellys of #3 ;return #3 where  #4 are exposed ;return number of  #5 ;return if  #6 is at least two
['select', 'project', 'filter', 'project', 'comparative', 'aggregate', 'boolean']