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: The broader Standard & Poor's 500 Index .SPX rose 3.47 points, or 0.36 percent, to 977.59. Sentence 2: The tech-laden Nasdaq Composite Index .IXIC shed 8 points, or 0.45 percent, to 1,645.
[A]: 1


[Q]: Sentence 1: A person is folding a square paper piece. Sentence 2: A man is folding paper.
[A]: 3


[Q]: Sentence 1: Comcast Class A shares were up 8 cents at $30.50 in morning trading on the Nasdaq Stock Market. Sentence 2: The stock rose 48 cents to $30 yesterday in Nasdaq Stock Market trading.
[A]:
2