In this task, you're given a pair of sentences, sentence 1 and sentence 2, that neither agree with nor contradict each other. Your job is to alter sentence 2 so that the pair clearly 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: Four people wait in a stone tiled courtyard. Sentence 2: Four people are waiting for a tour guide.
Example Output: Four people are outside.

Example Input: Sentence 1: Brown dog with black collar licking nose. Sentence 2: The dog licks the sauce from his nose.
Example Output: A dog liking them self.

Example Input: Sentence 1: A young boy in a blue shirt and green hat blows up an orange balloon. Sentence 2: A boy prepares for his birthday party.
Example Output:
An orange balloon is inflated by a young boy in a blur shirt.