TASK DEFINITION: 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.
PROBLEM: Sentence 1: A girl wearing a pink and black shirt and jeans fixes her hair before walking up the stairs. Sentence 2: A girl is wearing a shirt.

SOLUTION: A girl is bald.

PROBLEM: Sentence 1: Many dogs are running the same way in a field. Sentence 2: Many dogs are running together

SOLUTION: Cats are chasing birds

PROBLEM: Sentence 1: A man talks behind a podium. Sentence 2: A man is speaking.

SOLUTION:
A man stands silently.