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: A man dressed in cowboy attire is riding a horse. Sentence 2: the horse is white

SOLUTION: a man riding a horse

PROBLEM: Sentence 1: A man wearing a black leather vest with a rebel flag patch on it. Sentence 2: A man wearing a colorful scarf and a black leather vest with a rebel flag patch on it.

SOLUTION: A person is wearing a vest.

PROBLEM: Sentence 1: Several bicyclists are riding though a wooded area. Sentence 2: Bicyclists riding their bikes in a race.

SOLUTION:
Bicyclists riding their bikes.