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.

Sentence 1: A guy looking at posters displayed outside of a building. Sentence 2: A guy looking at new movie posters.
A guy looking at posters.

Sentence 1: A man in a baseball cap is playing a shooting game in an arcade with a friend. Sentence 2: A man is playing an arcade game the mall.
A man is playing an arcade game.

Sentence 1: Three members of a band are all practicing their different instrument skills. Sentence 2: Three members of the high school band are all practicing their different music skills.

Some musicians are practicing their various instruments.