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: A man is cutting tomatoes into pieces. Sentence 2: A woman is cutting some vegetables.
Example Output: 2

Example Input: Sentence 1: An elderly woman rides a bicycle along a city street. Sentence 2: An elderly woman walking uphill crossing the street.
Example Output: 2

Example Input: Sentence 1: Unit volumes also set a record as notebooks accounted for more than 40 percent of sales. Sentence 2: In May 2002, LCDs accounted for only 22 percent of monitor sales.
Example Output:
1