Premise: A mountain biker with a blue helmet makes his way down the steep, forested trail.

Hypothesis: A mountain biker rides his bike into a puddle.
Relation: contradiction

Hypothesis: A mountain biker is riding his bike down the steep, forested trail.
Relation: entailment

Hypothesis: A mountain biker, looks petrified,  while riding his bike down the steep, forested trail.
Relation: neutral