a-do a-ha a-wa aaaa aaab aaad aaah aaba aabb aabd aabh aabw aada aaha aaoo aaow aaww abaa abab abad abaw abb- abba abbb abbo abda abdo abha abho aboa abob abod aboh aboo abow abwa abwh adaa adab adad adah adao adaw adba adda addd addo adha adhd adho adob adod adoo adwa ahab ahad ahah ahha ahoa ahod ahwa aoah aoba aodh aowd awad awho awoo awow awwa baaa baad baah baba babb babo bada badb badd badh bado baha baho baoh baw- bawd bbad bbbb bbdd bbdo bddh bhao boab boad boba bobb bobo bobw boda bodb bodh bodo boha bohd boho bohw boob bood booh boow bowa bowd bwaa d-bo daab daad daba dabb dabo dada dado daha dawa dawd dawo dddd dhaa dhad dhao dhaw dhod dhow doab doba dobb dod- doda dodd dodo doha doob dood dowa dowb dowd dwad dwdd dwhb dwww haab haad haba habo hada hadh haha haho hawa hdda hdod hdwd hhaa hhhh hoad hoba hobo hoda hodh hoha hoho hood howa howd howh obad obba obbo odah odbo odda oddd odoh odoo ohad ohaw ohba ohho ohob ohoh ohow ooaa ooba ooda ooha ooho oooh oooo owda owoh owow owwa waaa waad waah waao waaw waba wabb wabd wabh wabo wabw wada wadb wadd wadh wado waha wahb waob waoh waoo waow wawa wawb wawd wawo wbaa wbab wbad wbbb wbbd wbbo wbbw wbha wbhb wbhh wbhw wbob wbow wbwb wbwo wdab wdad wdao wdba wdbd wdbo wddd wddh wddo wddw wdhb wdod wdoh wdow wdwd whaa whab whad whaw whbb whbo whdd whdh whdw whhb whhd whhh whho whhw whoa whod whoo whow whwa whwb whwh woaa woab woad woah woba wobb wobo woda wodb wodd woha woob wood woow wowb wowo woww wwab wwba wwbb wwbd wwdb wwdw wwhb wwho wwod wwow wwwa wwwh wwww