premise1: The motorcycle is being ridden on a track whilst pulling a wheelie.
premise2: A man riding a motorcycle is performing a trick at a track.
premise3: A man puts his motorcycle up on its rear wheel on a track.
premise4: A man doing tricks on a motorcycle
premise: The motorcycle is being ridden on a track whilst pulling a wheelie. A man riding a motorcycle is performing a trick at a track. A man puts his motorcycle up on its rear wheel on a track. A man doing tricks on a motorcycle
hypothesis: A man stands.