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: She countersued for $125 million, saying Gruner & Jahr broke its contract with her by cutting her out of key editorial decisions. Sentence 2: She countersued for $125 million, saying G+J broke its contract with her by cutting her out of key editorial decisions and manipulated the magazine's financial figures.

Ex Output:
4


Ex Input:
Sentence 1: A woman rides a horse. Sentence 2: A woman is riding a horse.

Ex Output:
5


Ex Input:
Sentence 1: Three children and playing and laughing on the floor. Sentence 2: Three children playing on the floor.

Ex Output:

4