instruction:
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.
question:
Sentence 1: A man works on the rear tire of a bike while a baby looks on from behind the bike. Sentence 2: A man fixes a flat on a mountain bike path.
answer:
A man repairs a bicycle tire.


question:
Sentence 1: Three women, one old, one young and one a child, walk down a street. Sentence 2: The women aren't alone on the street.
answer:
Women are walking down the street.


question:
Sentence 1: The dog is swimming in the water. Sentence 2: A dog is swimming after a stick in the water.
answer:

A dog is swimming.