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: A white dog with a black collar runs in the snow. Sentence 2: A dog is playing in a snow bank.
Example Output: There is a dog running outside.

Example Input: Sentence 1: little boy in blue shorts holding a window screen Sentence 2: A little boy is helping someone repair a window.
Example Output:
A person stands on a snowy hill next to a mountain.