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.

Example Input: Sentence 1: A young boy viewing a statue of a war hero. Sentence 2: A young boy is viewing a monument.
Example Output: A young boy is playing a a playground.

Example Input: Sentence 1: A race car spins on the track. Sentence 2: A race car crashes.
Example Output: A race car takes the lead!

Example Input: Sentence 1: A man photographing a large concrete wall. Sentence 2: A human photographing
Example Output:
Nobody is photographing.