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: People with numbers on their chests are running in a pack. Sentence 2: Marathon runners end up grouped together after a collision between runners.
People in a race are grouped together.

Sentence 1: A man is fixing the guitar players costume. Sentence 2: A guy stands near a rock star.
A gent handles wardrobe adjustment.

Sentence 1: Two monks in traditional orange robes are descending a staircase. Sentence 2: Two monks taking a walk outdoors.
Two monks travel down the stairs to their shrine.