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 Input:
Sentence 1: The person lit the cameras on fire. Sentence 2: A person is blow torching cameras.

Ex Output:
3


Ex Input:
Sentence 1: Zimmerman replied, "What are you doing here?" Sentence 2: Martin said, "Why are you following me?"

Ex Output:
1


Ex Input:
Sentence 1: Why are Russians in Damascus? Sentence 2: Russians in Damascus!

Ex Output:

4