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 person in black covering their face with their hands. Sentence 2: This person is emotional.
Example Output: A person hides their face from Santa's gaze.

Example Input: Sentence 1: A man falls to his knees as he entertains the guest. Sentence 2: A man is on his knees
Example Output: The man is kicking a hole in his wall

Example Input: Sentence 1: A group of people sift through shelves of books. Sentence 2: group of people rummaging through shelf of books
Example Output:
The four people are sitting.