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: A dog is running in the snow. Sentence 2: Two dogs running in the dirt
[A]: 2


[Q]: Sentence 1: Nokia apologises for 'faked' ad Sentence 2: US waives riders for Pak aid
[A]: 0


[Q]: Sentence 1: A dog is barking at a ball. Sentence 2: A dog swims after a tennis ball.
[A]:
2