premise: An African child attempts a headstand on the front of a boat painted blue and white in water next to a field of crops. hypothesis: A child is sitting lazily on the front of a boat.  The boat is brown and is in open water.
contradiction: A child is not necessarily African. Sitting lazily is not the same as attempting a headstand. Brown is a different color than blue or white.  Open water is a different place than a field of crops.