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.

[Q]: Sentence 1: How do you know what's right and wrong? Sentence 2: How do you know which story is the right one?
[A]: 2


[Q]: Sentence 1: A large black bird is sitting in the water. Sentence 2: The birds are swimming in the water.
[A]: 3


[Q]: Sentence 1: Selenski had previously spent seven years in prison on a bank robbery conviction. Sentence 2: Selenski had served about seven years in prison for bank robbery.
[A]:
5