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 group of people are in a large raft on choppy water. Sentence 2: A group of people are rafting on the river.
There are people rafting.

Sentence 1: A young man tends to his chainsaw. Sentence 2: The man just finished using the chainsaw.
People on the beach.

Sentence 1: A bunch of people walking by store windows. Sentence 2: The people are walking by the store windows inside a mall.

People are walking.