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 neither agree nor 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: Herds of bikers race by the spectators. Sentence 2: The bikers are racing.

SOLUTION: The bikers are reaching the finish line.

PROBLEM: Sentence 1: A black dog rolling in grass. Sentence 2: A dog plays outside.

SOLUTION: A dog rolls in the grass, excited spring is finally here.

PROBLEM: Sentence 1: A person is doing snowboarding tricks. Sentence 2: A snowboarder performs stunts.

SOLUTION:
An athlete competes in the X Games.