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.

Sentence 1: Two girls are standing outside. Sentence 2: Two girls stand outside while waiting for their friends.
Two people stand around outdoors.

Sentence 1: A young Asian girl is purchasing an item from a vending machine. Sentence 2: A girl is getting a soda from a vending machine.
A girl is using a vending machine.

Sentence 1: Group performs a dance together. Sentence 2: Ballet dancers are gliding.

There are people dancing.