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 woman is slicing herbs. Sentence 2: The man is slicing bread.

Ex Output:
2


Ex Input:
Sentence 1: A man is dieing in an operating room. Sentence 2: A man is kissing a woman in stage.

Ex Output:
0


Ex Input:
Sentence 1: Dozens dead in Taliban resort attack Sentence 2: 'India police name 3 Iranians in embassy attack'

Ex Output:

0