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 snowboarder in black and yellow is jumping on a purple snowboard. Sentence 2: There is a snowboarder wearing black and yellow doing a jump

SOLUTION: There is a snowboarder wearing black and green

PROBLEM: Sentence 1: Two women in skirts walking across a street. Sentence 2: They were walking.

SOLUTION: Both women wore pants.

PROBLEM: Sentence 1: A young boy rollerblading in a cement skate park. Sentence 2: The boy is rollerblading.

SOLUTION:
The girl skateboarded down the hill.