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: A man is taking out the insides of a green pepper. Sentence 2: Someone is removing the seeds from a bell pepper.

Ex Output:
4


Ex Input:
Sentence 1: A softball player swinging at a pitch. Sentence 2: A baseball player hitting the ball

Ex Output:
3


Ex Input:
Sentence 1: The same survey a month ago had Street leading Katz 42 percent to 34 percent, with 21 percent undecided. Sentence 2: One month ago in the same poll, Katz was leading 46 to 40 percent.

Ex Output:

2