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 person bundled and head covered laying on the sidewalk. Sentence 2: A person is outdoors.
A person is naked on the sidewalk.

Sentence 1: A little boy is riding a dirt bike with the number seven on it going down a hill. Sentence 2: A little boy is going downhill.
A little boy is driving a car.

Sentence 1: Small boy carries a soccer ball on a field. Sentence 2: boy is small

balls are flat