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.

Ex Input:
Sentence 1: The onus is on the manufacturer of a product to convince consumers it is safe. Sentence 2: The manufacturer has to convince the government it's safe.

Ex Output:
3


Ex Input:
Sentence 1: Myanmar’s Suu Kyi urges party unity amid squabbles Sentence 2: Suu Kyi urges party unity amid squabbles

Ex Output:
5


Ex Input:
Sentence 1: The technology-laced Nasdaq Composite Index <.IXIC> added 8.27 points, or 0.51 percent, to 1,633.53. Sentence 2: The broader Standard & Poor's 500 Index .SPX crept up 4.3 points, or 0.44 percent, to 980.52.

Ex Output:

1