Cryptoquote

AXYDLBAAXR is LONGFELLOW

One letter stands for another. In this sample, A is used for the three L’s, X for the two O’s, etc. Single letters, apostrophes, the length and formation of the words are all hints.

JMK BSPNFK KBBKPJSDFSPNWKOSKPJ

D BKPBSJSCK

DVDWKPKBB YE JMK EKKFSPNB YE

YJMKWB. — KQSFU LYBJ