Premise: A skateboarder getting ready to perform on a half-tube rink where there are trees in the background.

Hypothesis: A person with a skateboard is preparing to do tricks.
Relation: entailment

Hypothesis: Two horse chase after a man holding a carrot.
Relation: contradiction

Hypothesis: A skateboarder stands on top of a halfpipe about to jump down.
Relation: entailment