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: The ADRs fell 10 cents to $28.95 at 10:06 a.m. in New York Stock Exchange composite trading today. Sentence 2: Shares of Fox Entertainment Group Inc., News Corp.'s U.S. media and entertainment arm, fell 45 cents to $26.85 in New York Stock Exchange composite trading.

Output: 1


Input: Consider Input: Sentence 1: US Cannot 'Conclusively Determine' Chemical Weapons Use in Syria Sentence 2: U.S. Sees No Conclusive Evidence of Chemical Arms Use by Syria

Output: 5


Input: Consider Input: Sentence 1: Security experts are warning that a new mass-mailing worm is spreading widely across the Internet, sometimes posing as e-mail from the Microsoft founder. Sentence 2: A new worm has been spreading rapidly across the Internet, sometimes pretending to be an e-mail from Microsoft Chairman Bill Gates, antivirus vendors said Monday.


Output: 5