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.

Ex Input:
Sentence 1: A man in a cap teaches children proper bike maintenance. Sentence 2: A man is teaching some children.

Ex Output:
A lady is watching a movie.


Ex Input:
Sentence 1: Two brightly colored chickens stand outside of a pub. Sentence 2: Chickens are outside a bar.

Ex Output:
One chicken stands outside a pub.


Ex Input:
Sentence 1: a man is coming down the stairs with a huge white balloon. Sentence 2: A man walking down the stairs.

Ex Output:

A man walking into an elevator.