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: Many people on a street while vendors sell items. Sentence 2: The vendor is selling items on a street.

SOLUTION: The vendor is inside a museum.

PROBLEM: Sentence 1: A surfer blazes on a roaring wave. Sentence 2: the surfer rides the waves

SOLUTION: the cat eats his tail

PROBLEM: Sentence 1: Two dogs running through tall grass. Sentence 2: There are dogs running.

SOLUTION:
Two cats are sitting and ignoring each other.