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 pit crew working on a race car. Sentence 2: They are changing tires.
People are working on a car.

Sentence 1: Two people sit on a couch overlooking the view of a city. Sentence 2: An old couple enjoy the view.
Two people sit.

Sentence 1: A skier races down the mountain. Sentence 2: A fat skier races down the mountain.

A person races down the mountain.