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: In 2006, the group says the market will rebound 29.6 percent to $21.3 billion in sales. Sentence 2: In 2006, Asia Pacific will report growth of 7.9 percent to $81.8 billion.
Example Output: 2

Example Input: Sentence 1: a black and white photo of a cat lying down. Sentence 2: A black and white image of a cat laying on a rug.
Example Output: 4

Example Input: Sentence 1: As a result, Murphy sought to substitute Strier's sister, Ethel Celnik, as the trustee. Sentence 2: Murphy said Strier's sister, Ethel Celnik, was in the courtroom at the time, but Strier was not.
Example Output:
2