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 woman smiles with her old-fashioned sewing machine. Sentence 2: The sewing machine is old.
Example Output: The woman is knitting a scarf.

Example Input: Sentence 1: A man in a cap teaches children proper bike maintenance. Sentence 2: A man is teaching some children.
Example Output: A lady is watching a movie.

Example Input: Sentence 1: A young boy swinging upside down from a bar. Sentence 2: a young boy swinging uside down
Example Output:
he was swinging from a tree