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: A person wearing a helmet rides a bike near a white structure. Sentence 2: A person wearing a bike helmet rides a bike on a path through trees.

Ex Output:
3


Ex Input:
Sentence 1: if india blames foreign militants it is part of its propaganda to mislead the international community. Sentence 2: abe urged more assertive foreign policy for japan and the international community.

Ex Output:
1


Ex Input:
Sentence 1: What conviction would that be? Sentence 2: What conviction where you talking about before?

Ex Output:

4