In this task, you're given a pair of sentences, sentence 1 and sentence 2, that agree with each other. Your job is to alter sentence 2 so that the pair 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 man riding a brown horse poses in front of a mountain scene. Sentence 2: A man is on a horse in front of some mountains.
A man is riding a polar bear.

Sentence 1: Many people are sitting in yellow folding chairs. Sentence 2: The people are sitting in chars.
Everyone is standing on a cliff.

Sentence 1: A woman walking into the waves. Sentence 2: A woman is outside

The woman is in a jungle