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: A group of young children playing hopscotch on a sidewalk. Sentence 2: Children play hopscotch at preschool.

SOLUTION: Kids play hopscotch outdoors.

PROBLEM: Sentence 1: Two brown dogs are running through the grass. Sentence 2: Older dogs are playing around.

SOLUTION: Two dogs are running outside.

PROBLEM: Sentence 1: A person is snowboarding wearing a helmet. Sentence 2: There is a snowboarder riding down the mountain.

SOLUTION:
There is a person wearing practicing safety while snowboarding.