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: X'mas cruise passengers hit by Norovirus Sentence 2: Missing cruise passenger is a NSW ambo

Ex Output:
0


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: A dog leaping over a hurdle. Sentence 2: A dog leaps over the hurdle.

Ex Output:

5