premise: Two white men dressed in white and black Tae Kwon Do uniforms, competing with each other on a green and red matt while a team of onlookers watch. hypothesis: A duo of martial artists are competing on a colorful mat for a group of spectators.
entailment: two men would be a duo. IF they are dressed in tae kwon do uniforms, it follows that they are martial artists. onlookers is another word for spectators.