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: Two dogs play in the surf and one has a red ball. Sentence 2: There are two dogs playing in the water.
There are two dogs with a blue ball

Sentence 1: Several people at an outdoor picnic. Sentence 2: Humans in a group.
A single man eats alone.

Sentence 1: A large group of people are dancing outdoors in a tropical environment. Sentence 2: A group of people dance

People are sleeping