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 woman in a white shirt sitting on a gray bench in front of a wall with graffiti written on it. Sentence 2: A woman is waiting for a bus
Example Output: A woman sits on a gray bench with urban art behind her.

Example Input: Sentence 1: Bearded man rock climbing. Sentence 2: This is the man's first rock climb.
Example Output: The man is outside.

Example Input: Sentence 1: A person riding a dirt bike is surrounded by green grass and trees. Sentence 2: A man is riding a dirt bike outside.
Example Output:
A person is riding a dirt bike outside.