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 pulling a cart filled with many wooden chairs down a city street. Sentence 2: A man is in a city.
A man is pulling an empty cart.

Sentence 1: There is a man swinging off a rope swing into a lake. Sentence 2: A man looks like he is about to land in a lake.
A man is fishing in a lake.

Sentence 1: A man running barefoot on the grass. Sentence 2: A man running barefoot outside3

A man running with boots on.