Premise: Two men, sitting on ambulance motorcycles, are talking to each other.

Hypothesis: Two men, standing by an ambulance motorcycles, are yelling at each other.
Relation: contradiction

Hypothesis: Two men are talking to each other while sitting on an ambulance motorcycling.
Relation: entailment

Hypothesis: Two men in uniform are sitting on ambulance motorcycles talking to each other.
Relation: neutral