TASK DEFINITION: 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.
PROBLEM: Sentence 1: china is north korea's closest ally. Sentence 2: north korea is a reclusive state.

SOLUTION: 1

PROBLEM: Sentence 1: do you have anything to make it less compelling or not? Sentence 2: Do you have anything to make it more compelling?

SOLUTION: 2

PROBLEM: Sentence 1: Evolution is not an opinion, not a belief. Sentence 2: Atomic theory is not an opinion, not a belief.

SOLUTION:
2