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: But the FBI never kept tabs on al-Bayoumi - even though it had received information that he was a Saudi agent, the document says. Sentence 2: But the bureau never kept tabs on al-Bayoumi—despite receiving prior information he was a secret Saudi agent, the report says.

Output: 5


Input: Consider Input: Sentence 1: A woman is dancing with other women. Sentence 2: A woman is shredding chicken.

Output: 0


Input: Consider Input: Sentence 1: Dunlap won both the swimsuit competition and the talent portion of the competition, singing "If I Could." Sentence 2: She won the talent portion singing "If I Could" and also won in evening wear.


Output: 3