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: lets assume we have % white and % black. Sentence 2: Imagine a place that's % white and % black.
Example Output: 4

Example Input: Sentence 1: wen states that the main purpose of the germany visit is to advance trade, economic and technological exchanges. Sentence 2: wen stated that the purpose of his visit to germany is to advance trade, economic and technological exchanges.
Example Output: 5

Example Input: Sentence 1: A man sliced through a bunch of water bottles with a knife. Sentence 2: A man is slicing a line of water bottles with a knife
Example Output:
4