If one train car is mostly orange, with diagonal stripes at it's nose.
return train car ;return #1 that is mostly orange ;return nose of #2 ;return #3 that has diagonal stripes ;return #2 that has #4 ;return number of  #5 ;return if  #6 is equal to  one
['select', 'filter', 'project', 'filter', 'filter', 'aggregate', 'boolean']