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.

Example Input: Sentence 1: Bradley Manning-WikiLeaks case turns to sentencing Sentence 2: Manning WikiLeaks case turns to sentencing phase
Example Output: 5

Example Input: Sentence 1: In an interview, Healey, who is a criminologist, acknowledged that much of the sentiment among legislators here and across the country was wariness toward capital punishment. Sentence 2: In an interview, Ms. Healey, who is a criminologist, said many lawmakers here and across the country shared a wariness toward capital punishment.
Example Output: 5

Example Input: Sentence 1: In afternoon trading in Europe, France's CAC-40 advanced and Britain's FTSE 100 each gained 0.7 percent, while Germany's DAX index rose 0.6 percent. Sentence 2: In Europe, France's CAC-40 rose 1.3 percent, Britain's FTSE 100 declined 0.2 percent and Germany's DAX index gained 0.6 percent.
Example Output:
2