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 young boy, dressed in a karate gee and wearing a yellow belt, stands ready to defend himself inside a gym. Sentence 2: A young, yellow Belt, Karate Student is practicing in a Gym.
the boy smokes a cigarette at home

Sentence 1: bunch of people standing around in blue jumpsuits with guys in suites in the background Sentence 2: There is a group of people standing with others in the background.
There is a group of people doing gymnastics.

Sentence 1: A group of people in blue shirts at a sporting event. Sentence 2: Many people have the same color shorts.

Many people stand in line to go to a concert.