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 woman bundled up for cool weather rides her bike past a street vendor. Sentence 2: A person bundled up for cool weather rides her bike past a street vendor.
A man bundled up for cool weather rides his bike past a street vendor.

Sentence 1: Two costumed women holding a poster entitled "prom night". Sentence 2: Two women are in costume.
'Anaconda' cosplayers are holding a giant snake at the convention.

Sentence 1: A woman walks down a country road. Sentence 2: A woman is walking outside.

A woman is walking down the city sidewalk.