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: Two guys performing rock concert, one has short blond-hair who is singing, and the second has long blond-hair and is jamming out on his guitar. Sentence 2: the people are performing
Example Output: the children sleep in the living room

Example Input: Sentence 1: People wait in line at the deli, deciding what to buy. Sentence 2: People wait in line.
Example Output:
People wait at the bank.