premise1: A man on a motorcycle is jumping over a dirt hill in front of spectators.
premise2: A person in blue on a bike in midair.
premise3: A man in blue jumping a dirt bike.
premise4: A man on a dirt bike, airborne.
premise: A man on a motorcycle is jumping over a dirt hill in front of spectators. A person in blue on a bike in midair. A man in blue jumping a dirt bike. A man on a dirt bike, airborne.
hypothesis: A rider flies.