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.

Ex Input:
Sentence 1: The new study does not support your claim. Sentence 2: The physical evidence does not support your claim.

Ex Output:
2


Ex Input:
Sentence 1: The skinny cows are standing on the grass. Sentence 2: The white ducks are standing on the ground.

Ex Output:
1


Ex Input:
Sentence 1: Dr. Neander's revised version. Sentence 2: Neander's revised version"?

Ex Output:

4