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.

Sentence 1: Several men working on a motorcycle. Sentence 2: Several people with a motorcycle.
Two motorcycles sit in the corner of a shop.

Sentence 1: Four people in a room with a table full of books. Sentence 2: there are four people in the room.
They are burning the books.

Sentence 1: A swat team and several other people, including one person dressed as batman are in an underground facility. Sentence 2: A group of people, including one who was dressed up like batman, was underground.

A full swat team, including an oddly dressed bat person looked down from the rooftop at the angry mob of hecklers below.