premise: a climber wearing a red headband is pulling himself up some gray rocks high above some green foliage. hypothesis: A climber pulls himself up some rocks.
entailment: Pulling himself is akin to pulls himself up.|entailment: gray rocks are rocks and pulling himself is rephrasing of pulls himself.|entailment: "Pulls himself up some rocks" is a less specific rephrasing of "is pulling himself up some gray rocks.".