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 girl jumps rope on a sidewalk. Sentence 2: A girl is jumping rope outside.

SOLUTION: A boy is playing cards with his friend.

PROBLEM: Sentence 1: Two dogs play in the surf and one has a red ball. Sentence 2: There are two dogs playing in the water.

SOLUTION: There are two dogs with a blue ball

PROBLEM: Sentence 1: A group of young men is buried up to their chest in sand. Sentence 2: Some young men are playing in the sand.

SOLUTION:
The woman in the thick grey leather coat was seated at the bus stop.