a-ak a-do a-ok aaaa aaad aaaf aaar aada aafa aafd aaff aaka aaoo aara aard aaro adaa adad adak adao adar adda addd addo addr adfa adod adok adoo ador adra adro afaa afad afak afao afar affa affo afka afkr afoa afoo afor afr- afra afro akaa akao akar akka akko akok akr- akra aora arad araf arak arar arda ardf ardo arfa arff arka arko aroa arod aroo aror arr- arra arrk arro arrr daad daar dada dado dafa daff dafo daka dako dara dard darf dark daro darr dddd dfaf dffa dfrf doak doar dod- doda dodd dodo doff doka doko dood doof dook door dora dord dorf dork doro dorr draa drad draf drak drar drda drod drof drra f--k faaa faad fada fadd fado fafa faff fafo fako fara fard fark faro farr fdoa ffar ffff ffrr foad foaf foak foar foda fofo food foof fook for- fora ford fork foro forr frad frak kaaa kaaf kaak kaar kad- kada kadd kadf kado kadr kafa kaff kafr kaka kakk kako kaoa kaok kaor kara kard karf kark karo karr kdaa kdad kdaf kdak kdao kdar kddd kddf kddk kddr kdfo kdfr kdka kdkd kdkk kdko kdkr kdok kdrf kdro kfar kfda kffa kfff kffk kfka kfok kfoo kfor kfra kfrd kfro kfrr kkaa kkar kkda kkdd kkdo kkfr kkkk kkoa kkoo kkor kkrf kkrk kkro kkrr koak koar koda kodk kodo kofa koff kofk kofo koka kokf kokk koko kokr kook kooo koor kora kord korf kork koro korr krad krak krar krda krdd krdo krdr krfd krff krfo krka krkd krkk krko krkr kroa krod krof krok kroo kror krrf krrk krro krrr oafo oara odda oddd odoo odor odra ofdr off- offa offo offr ofor ofra okak okka okko okok okor okra okro ooaa ooak ooda ooff oooo oora oord orad orak orao orar orda ordo orff orka orko oro- orof orok oror orra orro raad raaf raak rada radd rado radr rafa raff raka rakk raok rara rarf rark raro rdfa rkkf road roaf roak roar roda rodd rodo roff rofo roka rokk roko rokr rood roof rook roor rora rork roro rrad rrrr