premise1: A biker wearing a yellow shirt pulls of an incredible trick in the air.
premise2: A man in a yellow shirt is trying to perform a trick on a bicycle.
premise3: A BMX biker performing a trick as he flies through the air.
premise4: Biker does a trick in midair.
premise: A biker wearing a yellow shirt pulls of an incredible trick in the air. A man in a yellow shirt is trying to perform a trick on a bicycle. A BMX biker performing a trick as he flies through the air. Biker does a trick in midair.
hypothesis: A man performing stunts on a bike.