TASK DEFINITION: In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly 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: Two soccer players, one from a team wearing red and the other wearing white, are both going for the soccer ball, while people on the bleachers watch. Sentence 2: The ball is about to go out of bounds.

SOLUTION: Two players from opposing soccer teams head for the soccer ball while the audience looks on.

PROBLEM: Sentence 1: Family hiking in the woods with two children. Sentence 2: The children are collecting acorns.

SOLUTION: A family with two children hike in the woods.

PROBLEM: Sentence 1: Three guys are barbecuing on a grill on a porch with a white fence. Sentence 2: Neighbors are cooking for a neighborhood block party.

SOLUTION:
A group of guys are cooking outside.