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 neither agree nor 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: Black man working on a plywood stage. Sentence 2: A man is working on a stage

SOLUTION: A man is cleaning the theater

PROBLEM: Sentence 1: a swimmer doing a backstroke Sentence 2: A swimmer swims.

SOLUTION: A swimmer swims in a lake.

PROBLEM: Sentence 1: A black dog is chasing two birds on the shore of the ocean. Sentence 2: A dog is chasing birds near the shore.

SOLUTION:
The dog has never been successful in catching a bird.