In this task, you're given a pair of sentences, sentence 1 and sentence 2, that contradict each other. Your job is to alter sentence 2 so that the pair agree with 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: An older gentleman taking a walk. Sentence 2: A old dog is talking a walk.
A old man is taking a walk.

Sentence 1: A boy in a green sweater is sitting at a table. Sentence 2: The boy isn't wearing anything green.
the boy is not walking

Sentence 1: Chopping down the perfect Christmas tree. Sentence 2: The man is decorating the tree.

An evergreen is being cut down.