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.

Example Input: Sentence 1: A man in a lab coat wearing glasses and looking at a computer monitor. Sentence 2: A tall human wearing glasses
Example Output: A human wearing glasses

Example Input: Sentence 1: A man in white dumping carts into the dumpster. Sentence 2: A man dumps out the trash he cleaned out of his garage.
Example Output: Man putting carts in dumpster.

Example Input: Sentence 1: The mountain climbers set up camp at the apex. Sentence 2: They are making camp at the apex.
Example Output:
mountain climbers making camp at the apex.