Premise: A bike rider with a full face helmet is in midair, playing the crowd they look and take pictures.

Hypothesis: A bike rider with a large helmet is doing a huge jump between two buildings, exciting the crowd as they look at take pictures.
Relation: neutral

Hypothesis: A person riding a small vehicle is flying through the air in front of a crowd.
Relation: entailment

Hypothesis: A bike rider wearing no helmet is in midair, playing the crowd they look and stare.
Relation: contradiction