In this task, you're given a pair of sentences, sentence 1 and sentence 2. Sentence 2 contradicts sentence 1. 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 dog descends a ramp, teeth bared. Sentence 2: A cat climbs a ramp.
A dog descends a ramp, smiling.

Sentence 1: A construction worker is working on a support beam on a building. Sentence 2: A dog is running
The construction worker is welding.

Sentence 1: A group of men in helmets and uniforms rollerskate while a referee watches. Sentence 2: The group of men in helmets and uniforms are working.

Some men are racing in a rollerskating competition.