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: Revenue rose 3.9 percent, to $1.63 billion from $1.57 billion. Sentence 2: The McLean, Virginia-based company said newspaper revenue increased 5 percent to $1.46 billion.
[EX A]: 1

[EX Q]: Sentence 1: A gorilla is playing the drums. Sentence 2: A monkey is playing drums.
[EX A]: 3

[EX Q]: Sentence 1: Three dogs standing in snow next to a blue fence. Sentence 2: Three dogs play in the shallows next to a rocky shore.
[EX A]:
2