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 little boy is jumping into the kiddie pool in the backyard. Sentence 2: A boy is playing in the pool.

SOLUTION: A boy is playing in the sandbox.

PROBLEM: Sentence 1: Two men are standing in a recording studio. Sentence 2: Two men are in a studio.

SOLUTION: Two men are dancing.

PROBLEM: Sentence 1: A man in a striped shirt selling green and yellow melon out of the back of a pick up. Sentence 2: A guy is selling melons.

SOLUTION:
A guy is buying bananas.