Evaluate the similarity between them and classify them into classes from 0-5 as follows:
0 : The two sentences are completely dissimilar.
1 : The two sentences are not equivalent, but are on the same topic.
2 : The two sentences are not equivalent, but share some details.
3 : The two sentences are roughly equivalent, but some important information differs/missing.
4 : The two sentences are mostly equivalent, but some unimportant details differ.
5 : The two sentences are completely equivalent, as they mean the same thing.

Sentence 1: The woman is walking her dog. Sentence 2: A woman walks her dog down the street.
4

Sentence 1: Do you further agree that I have made no claim? Sentence 2: So that you will admit and verify that I have made no claim.
4

Sentence 1: russia and nato member countries will hold meetings this fall on the conventional forces in europe treaty (cfe). Sentence 2: russian parliament voted unanimously to suspend russia's participation in the conventional forces in europe (cfe) treaty.

1