If there are two pick up trucks with a solid colored snow plow attached plowing snow.
return pick up trucks ;return snow  plow ;return #2 that is solid colored ;return #1 with #3 attached ;return snow  ;return #4 that are plowing #5 ;return number of  #6 ;return if  #7 is equal to  two
['select', 'select', 'filter', 'filter', 'select', 'filter', 'aggregate', 'boolean']