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 riding a green motorcycle jumping nine other green motorcycles. Sentence 2: A man crashed while jumping over obstacles on his motorcycle.
Example Output: A man is performing tricks on his powerfile bike.

Example Input: Sentence 1: A man is playing a guitar on stage. Sentence 2: Jimi Hendriplays live for an eager crowd
Example Output: a person is on a platform

Example Input: Sentence 1: A baby in a purple and yellow bouncer is crying. Sentence 2: A baby is left unattended.
Example Output:
A little boy in purple and yellow bouncer is crying