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: Many dogs are running the same way in a field. Sentence 2: Many dogs are running together

SOLUTION: Cats are chasing birds

PROBLEM: Sentence 1: People sitting down mending fishing nets along side a river on a cloudy day. Sentence 2: People are outside.

SOLUTION: People are standing in a river.

PROBLEM: Sentence 1: A dog fetching a stick in the water. Sentence 2: A dog fetching a stick.

SOLUTION:
A cat fetching a stick in the water.