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: 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: Man in a one shirt popping wheelies in the air on a red bicycle in a path lined by grass. Sentence 2: A man is riding a bike in a trick competition.
A man is riding a bike.

Sentence 1: A girl in a white outfit with a yellow belt is holding a trophy. Sentence 2: The girl just won a karate competition.

A girl in a white outfit is holding a trophy.