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: Two adults and a little boy sit on a homey exterior porch in front of an exotic flora and fauna nature scene. Sentence 2: People are sitting.

SOLUTION: A boy is watching television on a couch.

PROBLEM: Sentence 1: A boy dressed like a Trojan soldier is having his picture taken by a woman wearing a blue shirt. Sentence 2: A boy is getting his picture taken.

SOLUTION:
A boy is having himself sketched