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 woman who is fixing her computer while showing her daughter what it is doing. Sentence 2: A woman shows her daughter what the computer is doing
A computer technician is fixing a computer while showing her daughter.

Sentence 1: a baby is peeking his head over blue playpen. Sentence 2: a baby is looking over a blue playpen.

a baby is looking through a playpen.