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 gray "labradoodle" jumps over another large dog. Sentence 2: A "labradoodle" jumps over another large dog.

SOLUTION: A blue "labradoodle" jumps over another large dog.

PROBLEM: Sentence 1: four male construction workers in orange vests are working. Sentence 2: The workers are males.

SOLUTION: The workers are taking a lunch break.

PROBLEM: Sentence 1: Two rock and roll performers on stage playing their guitars performing in front of a crowd. Sentence 2: A band playing to a crowd

SOLUTION:
A country musician sings a classical piece for a group of people.