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: A person standing on a stage in front of a seated crowd Sentence 2: Someone is performing for others.
Someone is standing on stage in front of a crowd.

Sentence 1: Two people posing for a picture. Sentence 2: Two people are getting glamour shots.
Two people are posing.

Sentence 1: A boy is out on the town with his father. Sentence 2: A father and son spend a day together having a nice time.

A younger male is out with an older male.