In this task, you're given a pair of sentences, sentence 1 and sentence 2, that agree with each other. Your job is to alter sentence 2 so that the pair 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 man in a cap teaches children proper bike maintenance. Sentence 2: A man is teaching some children.
Example Output: A lady is watching a movie.

Example Input: Sentence 1: A man long boarding down an empty street. Sentence 2: A skateboarder skating down a street.
Example Output: A man bicycles down a street.

Example Input: Sentence 1: An ice hockey goalie guards the net while a few others play in front of him. Sentence 2: A goalie guards the net as others play before him
Example Output:
The goalie leaves the game