a-do aaaa aaab aaad aaam aaba aabb aabd aabm aada aama aamb aamd aamo aaoo abaa abab abad abam abb- abba abbb abbo abda abdo abma abmb aboa abob abod aboo abza adaa adab adad adam adao adba adda addd addo adma admb adob adod adoo amaa amad amam amaz amb- amba ambo amda amdo amm- amma ammo amob amod amoo amoz aoba aoma aza- azab azad azaz azo- azoo azza azzo baaa baad baam baaz baba babb babm babo bada badb badd bado bama bamb bamm baza bazm bazo bbad bbbb bbdd bbdo bmaa bmdb boab boad boaz boba bobb bobo boda bodb bodo boma bomb boob bood boom booz boza bozo bzzz d-bo daab daad daam daba dabb dabo dada dado dama damb damm damo dazz dddd dmaa dmab dmba dmoz doab doba dobb dod- doda dodd dodo doma domb domm domo doob dood doom doza dozo dzbb dzbm dzmb dzmz maaa maad maam maba mabo mada madb madd mado madz mama mamo maz- maza mazo mazz mbam mbba mbda mbdb mddm mdma mmaa mmab mmda mmdb mmmd mmmm mmod moaa moab moam moaz moba mobb mobo moda modd modo moma momo mooa moob mood moza mozo mzab oadm oama obad obba obbo odam odbo odda oddd odma odom odoo omam omao ombo omda omdb omma omo- omoa omoo ooaa ooba ooda ooma oooo ozd ozma zaba zabo zada zama zaza zobo zoda zodd zoma zomb zomo zoo- zoom zoza zozo zzzz