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 smiling construction worker with a white helmet. Sentence 2: He has been hit on the head before
Example Output: His head is protected

Example Input: Sentence 1: There is an ice hockey game, with players and a ref near one of the goals. Sentence 2: The hockey game is indoors.
Example Output: The hockey game has players and refs.

Example Input: Sentence 1: The large brown dog is running through the grass with a large stick in its mouth. Sentence 2: The dog is playing fetch with his owner.
Example Output:
The dog has a stick in his mouth.