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.

[Q]: Sentence 1: A white dog that is muddy walks across the green grass. Sentence 2: A cat walks across green, healthy grass.
[A]: A dirty dog treks through grass.


[Q]: Sentence 1: A man surfing on a big green wave. Sentence 2: A man on the beach is holding a surfboard.
[A]: A man is on a surfboard.


[Q]: Sentence 1: A brown dog is catching a Frisbee in midair. Sentence 2: A brown dog is eating dog food.
[A]:
A brown dog is playing.