If there is a stopped bus with people next to it and lit stop lights behind it
return bus ;return #1 that is stopped ;return people ;return #2 that is next to  #3 ;return stop lights of #4 ;return #4 where  #5 are lit ;return number of  #6 ;return if  #7 is at least one
['select', 'filter', 'select', 'filter', 'project', 'comparative', 'aggregate', 'boolean']