premise: A man wearing an orange shirt and sunglasses jogging in a marathon with spectators spectating him. hypothesis: A man sits at his computer sipping coffee.
contradiction: A man can't sit at his computer while jogging in a marathon.|contradiction: A man cannot sit and be jogging at the same time.|contradiction: One cannot be jogging and sitting at the same time. If someone is sitting at a computer sipping coffee, then the person can't be running a marathon.