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 man, wearing a short pink skirt, long striped socks, a pink tank top, and a hairnet, is juggling knives to the amusement of onlookers. Sentence 2: A clown performing
A man is riding an elephant at the fair.

Sentence 1: A boy selling lemonade for$ 1 rides his bike with no hands as he advertises his product to a long line of people. Sentence 2: The  boy is selling lemonade for a $1.
A boy selling cookies to a group of people.

Sentence 1: Man sitting on a can in the street. Sentence 2: A person sitting outside.

A boy riding a tractor.