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: People walking and congregating on a public street. Sentence 2: People walking around a city.
Cars hit dozens of people who are jaywalking on a busy street.

Sentence 1: A man with a braided bandanna stands behind a drum set. Sentence 2: A man is standing behind a musical instrument.
A person is playing the flute.

Sentence 1: young boy surfing on blue water Sentence 2: A kid rides some waves on a nice day
An old man swims alone in the ocean