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 leader at the front of a group is holding her hands in the air just like what all of the people facing her are doing. Sentence 2: A human is in front of a lot of other humans with her hands raise high.

SOLUTION: Three elderly people sit quietly on a park bench, feeding the ducks.

PROBLEM: Sentence 1: Older woman in red sweeter is opening a gift. Sentence 2: An older woman is wearing a sweater.

SOLUTION: An older woman is wearing a solid yellow sweater.

PROBLEM: Sentence 1: A boy in a gray hooded sweatshirt is throwing away a bag of garbage into a green dumpster. Sentence 2: A boy is throwing away a bag.

SOLUTION:
A boy in a black sweatshirt is by an orange dumpster disposing of a dead body he murdered last night.