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: 6.6 quake rocks Indonesia's Papua: USGS Sentence 2: 6.6 quake rocks Indonesia's Papua: US Geological Survey
[EX A]: 5

[EX Q]: Sentence 1: it will be hosted by the australian government. Sentence 2: the u.s. plans have angered the russian government.
[EX A]: 0

[EX Q]: Sentence 1: A large black and white dog is swimming in the water. Sentence 2: A black and white dog with a stick is in muddy water.
[EX A]:
4