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 man in glasses looks at his electronic device. Sentence 2: A tall person looking
Example Output: A human looking.

Example Input: Sentence 1: Two children are playing baseball Sentence 2: Some children playing in Little League baseball.
Example Output: Some children playing a sport.

Example Input: Sentence 1: A young man with a large black portfolio is skateboarding on the sidewalk. Sentence 2:  A young man with a black portfolio is skateboarding dangerously on the sidewalk.
Example Output:
 A man with a large black portfolio is skateboarding on the sidewalk.