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.

Example Input: Sentence 1: A person in a dark outfit is walking down a stairwell which contains a shadow of an object. Sentence 2: Wearing dark clothes, the person walked down the stairs.
Example Output: The man ran up the stairs, all the while not knowing whom he was chasing, although floodlights brightly lighted the stairwell.

Example Input: Sentence 1: A soccer player prepares for a corner kick. Sentence 2: The soccer player is playing soccer.
Example Output: The soccer player is sitting out this game.

Example Input: Sentence 1: Do these picketers really believe in what they are protesting? Sentence 2: There are people staging a protest.
Example Output:
Everyone sat down for the movie to begin.