instruction:
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.
question:
Sentence 1: A man uses a drill while a second man looks on. Sentence 2: The man works with a drill while another watches.
answer:
The men are working with hammers only.


question:
Sentence 1: The black and white dog catches the tennis ball in his mouth. Sentence 2: A dog catches a ball.
answer:
A dog chases a cat to the shouts of its owner.


question:
Sentence 1: Two boys with their shirts rolled-up are standing outside and there are some other people behind them and in the background. Sentence 2: Two boys are outside.
answer:

Two boys in suits are standing inside.