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: The cat is looking out of a window situated above ground level in a building. Sentence 2: The cat is bored.

SOLUTION: A cat looks out a window.

PROBLEM: Sentence 1: Man in a one shirt popping wheelies in the air on a red bicycle in a path lined by grass. Sentence 2: A man is riding a bike in a trick competition.

SOLUTION: A man is riding a bike.

PROBLEM: Sentence 1: two young girls wearing pink outfits playing on yellow monkey bars. Sentence 2: two girls are seeing who can go farther on the monkey bars.

SOLUTION:
two girls are playing on the playground.