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: Two men wearing bike helmets. Sentence 2: Two men stand with their bicycles outside a shop.

Ex Output:
2


Ex Input:
Sentence 1: A person is slicing an onion. Sentence 2: A cat is pooping into a toilet.

Ex Output:
0


Ex Input:
Sentence 1: Three men are sitting down at a table that has drinks on it. Sentence 2: Three men sitting at the table with beer and food.

Ex Output:

3