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 in red pushes his motocross bike up a rock. Sentence 2: A man in a red shirt has trouble pushing his bike.
answer:
A man wearing red with a bike.


question:
Sentence 1: A man is playing a guitar on stage. Sentence 2: Jimi Hendriplays live for an eager crowd
answer:
a person is on a platform


question:
Sentence 1: Two people look up from their microscopes in the middle of a crowd. Sentence 2: There are two people giving a lecture.
answer:

There are people studying something.