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 man with a white hard hat with a black logo in the front of the hat holding part of a sign with numbers on it, while standing on a balcony. Sentence 2: A man stands on a balcony, holding a sign with numbers on it while wearing a hard hat.

SOLUTION: A man is on the floor.

PROBLEM: Sentence 1: A white dog is chasing after a small dog at the beach Sentence 2: There are animals at the beach.

SOLUTION: A white cat is chasing after a small dog.

PROBLEM: Sentence 1: A mariachi band is playing in someone's yard, but only three players are visible. Sentence 2: The band is making music.

SOLUTION:
The band is sitting at a restaurant sleeping.