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: Parents watch as girls play softball in a game. Sentence 2: Girls play softball.
Example Output: Boys play basketball.

Example Input: Sentence 1: A brown dogs licks its black nose. Sentence 2: The brown dog has a black nose.
Example Output: The yellow dog is licking it's nose.

Example Input: Sentence 1: A female athlete in crimson top and dark blue shorts is running on the street. Sentence 2: Someone is running outside.
Example Output:
A woman is sitting on a white couch.