premise1: Many people are riding bicycles through a downtown area.
premise2: A large group of cyclists ride down a city street.
premise3: Dozens of bicyclists are crossing the street.
premise4: Several people are bike riding.
premise: Many people are riding bicycles through a downtown area. A large group of cyclists ride down a city street. Dozens of bicyclists are crossing the street. Several people are bike riding.
hypothesis: A group running a race.