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: Someoen is cooking onions. Sentence 2: A man is swinging nunchucks.

Ex Output:
0


Ex Input:
Sentence 1: the villagers are inadvertently involving themselves in drug trafficking. Sentence 2: 105 inmates are serving sentences for drug trafficking.

Ex Output:
1


Ex Input:
Sentence 1: People step off a train. Sentence 2: A group of people get off a train.

Ex Output:

5