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: Four men, three of whom are wearing prayer caps, are sitting on a blue and olive green patterned mat. Sentence 2: People are praying on a mat.
People are sitting on a mat.

Sentence 1: Man getting haircut at barber shop. Sentence 2: A barber is cutting a man's hair with scissors.
A person is receiving personal grooming attention.

Sentence 1: a black and white dog trying to bite a stream of water Sentence 2: A dog attacks a stream of water directed at him by an irate owner.

A dog tries to get a drink of water.