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 skateboarder does a stunt in the city. Sentence 2: A skateboarder does a trick for the crowd.
Example Output: A person is skateboarding in the city.

Example Input: Sentence 1: A hockey player shoots ice in the face of a opponent while racing to hit the hockey puck. Sentence 2: A hockey player attempts to score a goal.
Example Output: A hockey player attempts to hit the puck.

Example Input: Sentence 1: a bunch of young people drinking at a bar. Sentence 2: The group are celebrating a birthday.
Example Output:
A group of people are close together.