-ana aaaa aaab aaaf aaam aaan aaba aabb aabm aafa aafb aaff aama aamb aamn aamo aana aaon aaoo abaa abab abaf abam aban abb- abba abbb abbo abff abma abmb aboa abob abof abon aboo afaa afam afan afao affa affo afma afoa afoo amaa amam aman amb- amba ambn ambo amfm amm- amma ammo amno amob amof amon amoo ana- anaa anab anam anan anao anba anbb anbo anfa anfo anma anna annb anno ano- anoa anom anon aoba aoma aonb aono baaa baaf baam baan baba babb babm babo baff bafo bama bamb bamf bamm bamn bana bann bano baon bbbb bbfn bmaa bman boab boan boba bobb bobo bofa boff boma bomb bona bonn bono boob boof boom boon faaa faam faan faba fabm fabo fafa faff fafo fama famo fana fano faon fbom ffff fman fmno fnma foaf foam foan foba fofo foma fomo fono foof foom foon maaa maaf maam maan maba mabo mafa mafb maff mama mamf mamo man- mana manf mann mano maon mbam mbba mbna mfbm mffa mmaa mmab mman mmff mmmm mnaa mnam mnba mnbb moaa moab moaf moam moan moba mobb mobo mofa moff mofo moma momo mon- mona monn mono mooa moob moon naaa naab naam naan naba nabf nabo nafa naff nafo nama namb namm namo nan- nana nanb nann nano nbaa nbaf nbbo nbfa nfaa nfff nfma nfon nman nmff nmon nnnn noaa noam noba nobm nobo nom- noma nomo non- nona nonn nono noo- noob noon nooo oafo oama oban obba obbo obon ofan off- offa offo ofna ofno omam oman omao ombo omma omn- omo- omoa omon omoo onab onam onan onna onno onon ooaa ooba ooff ooma oona oooo