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: PURE COMMUNISM: You have two cows. Sentence 2: LIBERTARIAN/ANARCHO-CAPITALISM: You have two cows.
Example Output: 2

Example Input: Sentence 1: A man is tying his shoe. Sentence 2: A man ties his shoe.
Example Output: 5

Example Input: Sentence 1: Cisco pared spending to compensate for sluggish sales. Sentence 2: In response to sluggish sales, Cisco pared spending.
Example Output:
5