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 neither agree nor 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 swimmer doing a backstroke Sentence 2: A swimmer swims.
A swimmer swims in a lake.

Sentence 1: A black and tan Doberman dog is jumping through some water. Sentence 2: a dog is outside
a dog is chasing a ball

Sentence 1: A man in a blue shirt is standing in a doorway. Sentence 2: A man is in the doorway.

A man watches his wife from the doorway.