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: ALTHOUGH SATELLITE INTENSITY ESTIMATES FROM TAFB AND SAB ARE ONLY T./ Sentence 2: SUBJECTIVE DVORAK INTENSITY ESTIMATES FROM TAFB AND SAB INCREASED TO  KT.

Output: 2


Input: Consider Input: Sentence 1: There is no war in the Middle east. Sentence 2: There is no "WAR" in the middle east.

Output: 5


Input: Consider Input: Sentence 1: Several black Democratic leaders were attempting to arrange a meeting with DNC chairman Terry McAuliffe to discuss the layoffs. Sentence 2: Black Democratic leaders were trying to arrange a meeting with Democratic National Committee Chairman Terry McAuliffe to discuss the layoffs of 10 minority staffers at party headquarters.


Output: 3