premise: Three young men wearing backpacks, shorts, t-shirts, sandals and hats are standing together on a sandy surface with palm trees in the distance. hypothesis: Three guys are sitting at a picnic table the beach while admiring the sunny day.
contradiction: If the men are standing, they can't be in the sitting posture.|contradiction: People cannot be standing and sitting at the same time.|contradiction: The men can't be sitting and standing at the same time.