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: A string quartet practices for an up-coming performance. Sentence 2: A string quartet practicing.
The woodwind section warming up for a performance.

Sentence 1: A child is sliding down a hill on a sled. Sentence 2: The child was outdoors.
A child is sliding up a hill on a sled.

Sentence 1: The young lady is decorating herself for Halloween. Sentence 2: A woman is getting ready for Halloween.

A lady is taking a bubble bath.