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 Q]: Sentence 1: South Africa has the world's highest caseload with 4.7 million people infected with HIV or AIDS. Sentence 2: With 4.7 million people infected with HIV or AIDS, South Africa has the world's highest AIDS caseload.
[EX A]: 5

[EX Q]: Sentence 1: A animal is eating. Sentence 2: The animal is hopping.
[EX A]: 0

[EX Q]: Sentence 1: Cleveland Kidnapper Ariel Castro Found Hanged in Prison Cell Sentence 2: Cleveland kidnapper Ariel Castro found hanging in his cell
[EX A]:
5