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 couple sits on a bench talking, while a woman walks a dog in the background. Sentence 2: Many people are enjoying the day at the park.
answer:
People are sitting on the bench.


question:
Sentence 1: Man in a one shirt popping wheelies in the air on a red bicycle in a path lined by grass. Sentence 2: A man is riding a bike in a trick competition.
answer:
A man is riding a bike.


question:
Sentence 1: two people walking down a city street at night Sentence 2: A man and woman are walking at night.
answer:

Two people are walking at night.