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: 4 killed in shrine bombing in northwest Pakistan Sentence 2: 12 killed in U.S. drone strike in NW Pakistan
1

Sentence 1: A man wearing a orange vest is canoeing in the blue water. Sentence 2: A man in an orange jacket raising his hands to the sky in the sand.
2

Sentence 1: Best way to get money out is to get rid of lobby, all of it. Sentence 2: Best way to turn it on its head is to get money out.

3