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.

Input: Consider Input: Sentence 1: A gorilla is playing the drums. Sentence 2: A monkey is playing drums.

Output: 3


Input: Consider Input: Sentence 1: London-based NCRI official Ali Safavi told Reuters: "We condemn this raid, which is in our view illegal and morally and politically unjustifiable." Sentence 2: We condemn this raid which is in our view illegal and morally and politically unjustifiable, London-based NCRI official Ali Safavi told Reuters by telephone.

Output: 5


Input: Consider Input: Sentence 1: claims about trayvon's character And when did I do that? Sentence 2: slanted blogs And when did I do that?


Output: 3