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: People are standing on an escalator moving up. Sentence 2: People ride up an escalator.
[EX A]: 5

[EX Q]: Sentence 1: He gave a surprisingly impassioned speech to the United Steelworkers of America, who announced their endorsement yesterday. Sentence 2: On Tuesday, he picked up the endorsement of the United Steelworkers of America.
[EX A]: 2

[EX Q]: Sentence 1: The technology-packed Nasdaq Composite Index <.IXIC> dropped 37.78 points, or 1.94 percent, to 1,912.36. Sentence 2: The Nasdaq composite index fell 2.95, or 0.2 percent, for the week to 1,912.36 after stumbling 37.78 yesterday.
[EX A]:
2