a-ha aaaa aaab aaah aaam aaba aabb aabh aabm aaha aama aamb aamo aaoo abaa abab abam abax abb- abba abbb abbo abha abhm abho abma abmb aboa abob aboh aboo abox ahab ahah aham ahha ahoa ahom amaa amah amam amax amb- amba ambo ambx amm- amma ammo amob amoo aoah aoba aoma axo- axoa axxo ba-x baaa baah baam baba babb babm babo baha baho bama bamb bamm baoh bbbb bbox bhao bmaa boab boba bobb bobo boha bohm boho boma bomb boob booh boom boox boxa haab haam haba habo haha haho hama hamm hamo haxo hbox hhaa hhhh hmhb hmmm hoam hoax hoba hobo hoha hohm hoho hom- homa homo hoom hoox hoxa maaa maam maba mabo maha maho mama mamo maxx mbam mbba mbox mhmm mmaa mmab mmhm mmmh mmmm mmxx moaa moab moam moba mobb mobo moha mohm moho moma momo mooa moob moxa moxo oama obba obbo obox oham ohba ohho ohob ohoh omam omao ombo omha omma omo- omoa omoo omox ooaa ooba ooha ooho ooma oooh oooo oxa- oxo- oxox oxxo xbox xmax xohm xoom xoxo xxxo xxxx