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: two kids playing on the beach, close to the water Sentence 2: Two kids building sand castles.
Example Output: Two kids ouside.

Example Input: Sentence 1: Interracial couple looks at each other wearing biking helmets Sentence 2: The interracial couple check out their new biking helmets they bought.
Example Output: A couple of humans look at each other.

Example Input: Sentence 1: A person skiing downhill. Sentence 2: The person is doing advanced skiing tricks.
Example Output:
Someone is enjoying a winter sport.