If there is a bus with at least one shild in the advertizing on the side of the bus
return bus  ;return the  side of #1 ;return advertizing ;return #3 on #2 ;return shilds ;return #5 in  #4 ;return number of  #6 ;return if  #7 is at least one
['select', 'project', 'select', 'filter', 'select', 'filter', 'aggregate', 'boolean']