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 small boy enjoys chasing ducks in the fall. Sentence 2: A child plays with an animal.
Example Output: A boy plays with his puppy.

Example Input: Sentence 1: A man with a white hard hat with a black logo in the front of the hat holding part of a sign with numbers on it, while standing on a balcony. Sentence 2: A man stands on a balcony, holding a sign with numbers on it while wearing a hard hat.
Example Output: A man is on the floor.

Example Input: Sentence 1: Two people in a canoe watching something in the boulder lined water. Sentence 2: Two people are in a canoe.
Example Output:
Three people are in a canoe going over a waterfall.