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 group of people sitting around a desk. Sentence 2: A group of girls on a beach.
[EX A]: 1

[EX Q]: Sentence 1: The man drilled holes into the wood. Sentence 2: A man drills wood.
[EX A]: 4

[EX Q]: Sentence 1: SEC Chairman William Donaldson said there is a "building confidence out there that the cop is on the beat." Sentence 2: I think there's a building confidence that the cop is on the beat.
[EX A]:
3