Premise: A boy wearing only swim trunks jumps off a dock into a large, blue lake that has a forest in the far background.

Hypothesis: A girl swims laps in an olympic size swimming pool.
Relation: contradiction

Hypothesis: A boy wearing a swim suit jumps into a lake.
Relation: entailment

Hypothesis: A boy jumps into the lake at his cabin for the first time that year.
Relation: neutral