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 dog splashing in the water. Sentence 2: An animal splashing in the water.

SOLUTION: A cat splashing in the water.

PROBLEM: Sentence 1: A female bicyclist takes in the ocean view. Sentence 2: A woman rides a bike.

SOLUTION: For whom the bell cracks up.

PROBLEM: Sentence 1: girl posing on tree Sentence 2: A girl and a tree.

SOLUTION:
A boy and a bush.