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: The man is riding a bike down a dirt hill. Sentence 2: A trick bicyclist grinds down a handrail.
[EX A]: 2

[EX Q]: Sentence 1: The ADRs fell 10 cents to $28.95 at 10:06 a.m. in New York Stock Exchange composite trading today. Sentence 2: Shares of Fox Entertainment Group Inc., News Corp.'s U.S. media and entertainment arm, fell 45 cents to $26.85 in New York Stock Exchange composite trading.
[EX A]: 1

[EX Q]: Sentence 1: That would make you partially responsible for their death. Sentence 2: That would make you a sort of accessory, I think.
[EX A]:
3