If one corgi is on a blue mat in a pool.
return corgis ;return mat ;return pool ;return #2 that is blue ;return #4 that is in  #3 ;return #1 that is on #5 ;return number of  #6 ;return if  #7 is equal to  one
['select', 'select', 'select', 'filter', 'filter', 'filter', 'aggregate', 'boolean']