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: Slutstamp! A dear friend from Ohio sent me this. Sentence 2: A dear friend from Ohio sent me this.

Output: 4


Input: Consider Input: Sentence 1: Spain asks for bank rescue Sentence 2: Spaniard on trial for Cuban dissident’s death

Output: 0


Input: Consider Input: Sentence 1: The military officer barked at the recruits. Sentence 2: An officer is talking to recruits.


Output: 2