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.

Sentence 1: Suspected Saudi militant dies in Lebanese custody Sentence 2: Suspected US drone kills 6 militants in Yemen
0

Sentence 1: Man Who Set Himself on Fire on National Mall Dies of Injuries Sentence 2: Man 'who set himself ablaze' on National Mall dies
5

Sentence 1: A brown dog sits on the beach. Sentence 2: A dog running on the beach

2