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: So YES, we DO read the bible to learn about Christianity. Sentence 2: personally i would read the bible to learn about christianity.

Ex Output:
3


Ex Input:
Sentence 1: A bird sits in a tree. Sentence 2: A bird sits in a leafless tree.

Ex Output:
4


Ex Input:
Sentence 1: 12 killed in Gaza in Israeli airstrikes Sentence 2: Ictu, Ibec in move on airline strike

Ex Output:

0