Premise: The motocross bike spits gravel as its brightly attired rider pursues his adversary.

Hypothesis: Both motcross riders are brightly attired.
Relation: neutral

Hypothesis: The motocross bike with the brightly attired rider has overtaken his opponent.
Relation: contradiction

Hypothesis: The motocross bike throws gravel as he chases down his opponent.
Relation: entailment