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: Suspected Saudi militant dies in Lebanese custody Sentence 2: Suspected US drone kills 6 militants in Yemen

Ex Output:
0


Ex Input:
Sentence 1: Obama moves to fill Fed board, taps Fischer to be No. 2 Sentence 2: Obama voices willingness to talk with GOP on budget

Ex Output:
0


Ex Input:
Sentence 1: A black and white image of a cat laying on a rug. Sentence 2: Black and white picture of a cat laying on a rug.

Ex Output:

5