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: Man with a camouflage hat is throwing knives at a target. Sentence 2: an army colonel is throwing knives.
a man is throwing knives

Sentence 1: Cyclists ride down the street on a sunny day. Sentence 2: bikers are racing each other for the summer race
bikers are riding down the street

Sentence 1: A person playing a guitar while singing into a microphone. Sentence 2: The person is performing for a bar.

The person is playing music.