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: Feds move to require car-to-car safety communication Sentence 2: Guatemala overturns former dictator's genocide conviction
[EX A]: 0

[EX Q]: Sentence 1: Mom busted in and said, "What's that noise?" Sentence 2: My kids busted in and said 'whats that Dad?'
[EX A]: 2

[EX Q]: Sentence 1: A man is adding oil to car. Sentence 2: A man is putting anti-freeze into a car.
[EX A]:
2