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: Someone is walking through the snow with snow covered mountains behind them. Sentence 2: a person is walking in the himalayas

SOLUTION: a person is walking outside

PROBLEM: Sentence 1: A man works on the rear tire of a bike while a baby looks on from behind the bike. Sentence 2: A man fixes a flat on a mountain bike path.

SOLUTION: A man repairs a bicycle tire.

PROBLEM: Sentence 1: The blond girl is watching the boy run barefoot on the ground. Sentence 2: She likes the boy.

SOLUTION:
The blond girl is watching the boy.