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: Revenues for "The Hulk" came in well below those of last month's Marvel Comics adaptation, "X2: X-Men United," which grossed $85.6 million in its opening weekend. Sentence 2: The Hulk trailed last month's Marvel Comics adaptation, X2: X-Men United, which grossed $85.6-million in its opening weekend.
Example Output: 5

Example Input: Sentence 1: A woman with a knife is slicing a pepper. Sentence 2: A women slicing green pepper.
Example Output: 4

Example Input: Sentence 1: A cat is watching a TV. Sentence 2: A man is slicing a leave.
Example Output:
0