The prologue follows the rhyme scheme of:
AABBA/CDDC/EFFE/GG
BAABB/CCDD/EEFF/GG
CABAB/CDCD/EFEF/GG
DACAC/BDBD/EFEF/GG
AABBA/CDDC/EFFE/GG
BAABB/CCDD/EEFF/GG
CABAB/CDCD/EFEF/GG
DACAC/BDBD/EFEF/GG