premise1: Some people on motorcycles are riding down the road in the same direction as a trolley car.
premise2: A group of motorcyclists riding down the street.
premise3: There is a lot of traffic on the road.
premise4: A gang of bikers sit in traffic.
premise: Some people on motorcycles are riding down the road in the same direction as a trolley car. A group of motorcyclists riding down the street. There is a lot of traffic on the road. A gang of bikers sit in traffic.
hypothesis: Riders making their way down a hill.