-ana a-do a-un aaaa aaab aaac aaad aaan aaba aabb aabc aabd aaca aacb aacc aacd aacn aaco aacu aada aadc aadu aana aand aaon aaoo abaa abab abac abad aban abau abb- abba abbb abbo abca abcb abcc abcd abcn abda abdo abdu abnu aboa abob abod abon aboo abou abua abud abun acaa acab acac acad acan acba acca accc accd acco accu acda acdb acdc acoa acod acon acou acu- acuo adaa adab adac adad adan adao adba adbc adcc adda addc addd addn addo addu adna adob adoc adod adon adoo adua adub adun ana- anaa anab anac anad anan anao anau anba anbb anbo anbu anca ancc anco and- anda ando anna annb anno ano- anoa anod anon anua anub anun aoba aoca aonb aono aoun auaa auca audc audo auna baaa baad baan baba babb babo babu bac- baca bacc bacn baco bada badb badd bado badu bana banc band bann bano banu baon bau- baud bbad bbau bbbb bbdd bbdo bcaa bcbc bcca bccc bcda bcnu bcuc bdbc bddc bdna bnoc boab boac boad boan boba bobb bobo bobu boca boco bocu boda bodb bodo bodu bona bonc bond bonn bono bonu boob booc bood boon boua boud boun buad buba bubb bubo bubu buca bucc buco bucu buda budb budd budo budu buna bunb bund bunn buno bunu buon c-bo c-cd caaa caab caac caan caba cabo cabu cac- caca cacc caco cada cadc cadd cado cadu cana canc cand cann cano caod cauc cauo cbac cbbc cbca cbcc cbcn cbcu cbdb cbdc cbdn cbdo cbna cbnd ccaa ccab ccac ccad ccba ccbc ccbn ccca cccb cccc cccu ccdc ccdn ccna ccnb ccnc ccnu ccob ccoc ccod ccuc cdaa cdac cdad cdba cdda cddb cdna cdnb cdnc cdon cnaa cnac cnbc cnco cnda cndd cnna coad coan coba cobb cobo cobu coca coco cocu coda codd con- cona conc cond conn cono coob cood coon coua coub coud coun cuan cuau cub- cuba cubb cuca cucc cucn cuda cuna cund cuno cuon d-bo d-na daab daad daan daau daba dabb dabo dabu daca dada dado dadu dana dand dann dano danu daon daou daub daud daun dbcc dcbc dcca dccb dccc dccu dcdb dcon dddd ddoc ddub dnaa dnab dnac dnad dnan dnoc doab doan doba dobb dobu doca doco docu dod- doda dodd dodo dona donc dond donn dono doob dood doon doub douc doud doun duaa duab duad duan dub- duba dubb dubc dubu duca duco duda dudd dudo dudu duna dunc dunn duno duo- duon naaa naab naac naad naan naba nabc nabo nabu naca nacc nacd naco nada nadc nadu nan- nana nanb nand nann nano nanu naoc nauo nbaa nbad nbbc nbbo nbca nbcc nbco ncaa ncac ncba ncbc ncca nccc nccn nccu ncda ncdc ncdn ncdu ncna ncnc ncnd ncoa ncoc ncua ndaa ndao ndau ndcc nddb nddo ndna ndoc nndb nnnn noaa noac noba nobc nobo nobu noco noda nodo nodu non- nona nonn nono nonu noo- noob noon nooo noun nuan nuba nubc nuca nucu nuda nudc nudd nudo nuna nunc nunn nuno nuoc nuon oaau obad oban obba obbo obon ocab ocac ocad ocan ocbc occa occc occn ocna ocon odac odbo odda oddd odnb odon odoo odou onab onan onc- onca oncd onco onda ondo onna onno onod onon ooaa ooba ooda oona oooo ouac ouad ouan oucc oudc oun- ouna ound ouu- uabc uaca uaoc uaua ubac ubba ubbo uboc ubod ubon ubud ucad ucan ucbc ucca ucdc ucdd ucon ucua udaa udad udau udbc udca udon udoo udun unaa unac unan unau unbd unca uncc unco unda undo unna unno unon uocc uuno uuoc uuuu