Premise: A young boy is at a fair using one of the installations that uses a trampoline and two elastic bands attached to the waist to enable the user to jump very high safely.

Hypothesis: A boy is wearing jeans and a white jersey as he bounces around on the trampoline.
Relation: neutral

Hypothesis: A boy watches his sister play on the trampoline at the fair.
Relation: contradiction

Hypothesis: A boy is on a contraption at the fair.
Relation: entailment