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: Tokyo to host 2020 Olympic Games Sentence 2: Wrestling to feature in 2020 Tokyo Olympics

Ex Output:
1


Ex Input:
Sentence 1: five people standing on a sidewalk Sentence 2: Five people on a sidewalk.

Ex Output:
5


Ex Input:
Sentence 1: the international atomic energy agency has no access to people, documents, sites. Sentence 2: the international atomic energy agency is based in

Ex Output:

1