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: Obama nominates new transportation secretary Sentence 2: Obama To Meet Embattled Veterans Secretary

A: 0
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Q: Sentence 1: A monkey is walking through the water. Sentence 2: A guy is playing a trumpet.

A: 0
****
Q: Sentence 1: Are you driving one? Sentence 2: Are you driving a fucking Volt?

A:
3
****