a-do aaaa aaab aaad aaba aabb aabd aada aaoo abaa abab abad abaj abb- abba abbb abbo abda abdo aboa abob abod aboo adaa adab adad adao adba adda addd addo adja adob adod adoo ajab ajao ajba ajob ajoo aoba baaa baad baba babb babo bada badb badd bado baja bbad bbbb bbdd bbdo bd-j bjoa boab boad boba bobb bobo boda bodb bodo bojd bojo boob bood d-bo daab daad daba dabb dabo dada dado daja dddd djao doab doba dobb dod- doda dodd dodo doja dojo doob dood jaba jabo jada jado jaja jbaa jbob jjad joab joad joao joba jobo joda jodo jojo obad obba obbo obja odbo odda oddd odoo ooaa ooba ooda oooo