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: Table with blue table cloth in kitchen. Sentence 2: Wooden cabinets in kitchen.
Example Output: 2

Example Input: Sentence 1: A man is chopping butter into a container. Sentence 2: A woman is cutting shrimps.
Example Output: 1

Example Input: Sentence 1: hong kong universities collaborate with universities, businesses and government sectors of mainland china to coordinate training programs and research centers to promote high-tech research, commercialization, and technology transfer. Sentence 2: hong kong universities have collaborated with tertiary education, business and government sectors of mainland china to direct training programs and research centers to promote research commercialization and technology transfer.
Example Output:
5