premise: A young girl stands in yellow plaid shorts and a white top holding a wooden fishing rod as she stands at the boundary of a small pond, gazing at the camera. hypothesis: An old man casts his fishing pole into the river.
contradiction: There must be either a girl or a man as the performer of the actions. The actions involving fishing gear are different: in one, the person merely holds a fishing rod while in the other instance the person actively casts his fishing pole into the river. Also, while a wooden fishing rod and a fishing pole are similar the latter implies a more professional implement. Lastly, although a small pond and a river have water, they are different, with the water in the former being stationary and water in a river actively flows.