In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly contradict each other. Generated sentences must be short, with less than 15 words. New information can be introduced. Avoid using pronouns to confuse the subject of the sentence.

Sentence 1: A young guy is a red shirt performing skateboard trick. Sentence 2: A man does a kickflip on his skateboard.
A man on a skateboard.

Sentence 1: A man in glasses looks at his electronic device. Sentence 2: A tall person looking
A human looking.

Sentence 1: A white dog walks through shallow water in the wilderness. Sentence 2: The dog is looking for food.

The dog is in the water.