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 wearing a black shirt sleeping on a concrete bench near a tree. Sentence 2: A man is wearing a black shirt

SOLUTION: A man is wearing a red shirt

PROBLEM: Sentence 1: Someone with an orange jacket walking with a bike points to a building. Sentence 2: Someone in a jacket is walking with a bike

SOLUTION: Someone with a red jacket walking with a bike points to a building.

PROBLEM: Sentence 1: A hockey player wearing a red uniform reaches for the puck as others follow. Sentence 2: There is a hockey player on ice.

SOLUTION:
The hockey player sits on the bench, watching others play.