premise: A man with a red shirt and black hat suspends himself in the air by sitting on a pole and clinging to two wires with his hands. hypothesis: A man hangs in the air with a pole and wires while wearing a hat.
entailment: Both sentences describe a man hanging in the air with poles and that he is wearing a hat. Sentence two is rephrasing of sentence one. "a man hangs in the air" means the same as "a man with a red shirt and black hat suspends himself in the air".