If one image contains at least one empty parked bus with a completely flat front, and the other image shows people standing next to a slope-front bus near glowing yellow traffic lights.
return one image  ;return buses in  #1 ;return #2 that are empty ;return #3 that are parked ;return front of #4 ;return #4 where  #5 is completely flat ;return number of  #6 ;return if  #7 is at least one ;return the  other image  ;return people in  #9 ;return bus  in  #9 ;return #11 that has slope-front ;return traffic lights in  #9 ;return #13 that are glowing yellow ;return #12 near #14 ;return if  #10 are standing next to  #15 ;return if  both  #8 and #16 are true
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