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.

[EX Q]: 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.
[EX A]: People in a race are grouped together.

[EX Q]: Sentence 1: At the bakery, the fat old baker sleeps while his apprentice rubs the flour out of his eyes, seated beside him. Sentence 2: The apprentice is clumsy.
[EX A]: An apprentice works while the baker sleeps.

[EX Q]: Sentence 1: A young teacher or student is making a bulleted list of the classroom rules for a Chemistry class. Sentence 2: The TA is writing the rules for the lab class to copy down.
[EX A]:
The Chemistry class rules are being written on the blackboard.