premise: A man with ski poles and a large camping backpack treks through the snow. hypothesis: A man is trekking through the snow with ski poles.
entailment: "A man with ski poles and a large camping backpack treks through the snow" is a rephrase of "A man is trekking through the snow with ski poles.".|entailment: Trekking through the show and treks through the snow both imply that the man doing this right now.|entailment: trekking is a rephrasing of treks.