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: Two men skateboarding in the forest. Sentence 2: Two men are outdoors.
Example Output: Two girls are in a treehouse.

Example Input: Sentence 1: A man in a blue t-shirt holds a camera. Sentence 2: A man holding a camera.
Example Output: A man prepares to take notes.

Example Input: Sentence 1: A white dog treads the water with sticks in its mouth. Sentence 2: A dog is in some water.
Example Output:
A cat is in the water.