If a single ray is sitting on the sandy bottom in the image on the left.
return left image ;return ray of #1 ;return bottom ;return #3 that is sandy ;return #2 sitting on #4 ;return the  number of  #5 ;return if  #6 is equal to  one
['select', 'project', 'select', 'filter', 'filter', 'aggregate', 'boolean']