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: A man is speaking on a stage. Sentence 2: A man is speaking at a podium.
[EX A]: 3

[EX Q]: Sentence 1: the international atomic energy agency has no access to people, documents, sites. Sentence 2: the international atomic energy agency is based in
[EX A]: 1

[EX Q]: Sentence 1: Syrian govt wont stop attacks Sentence 2: Syrian opposition reports 'massacre'
[EX A]:
1