a-do a-fu aaaa aaac aaad aaaf aaal aaca aacc aacd aacf aacl aaco aacu aada aadc aadu aafa aafc aafd aaff aafl aala aalc aald aall aalo aalu aaoo acaa acac acad acca accc accd accf acco accu acda acdc acdf acfc acfd acfl acla aclc aclu acoa acod acol acou acu- acuf acul acuo adaa adac adad adal adao adcc adda addc addd addl addo addu adfa adfc adfl adoc adod adoo adua afaa afad afao afca afcc afcu afdc afdl affa affc affo afla aflc afoa afol afoo afua afud alaa alac alad alal alao alau alca alcc alco ald- alda aldl aldo alfa all- alla alll allo allu aloa aloc alod alof alol aloo alou alua aluf aoca aola aouf aoul auaa auca audc audo aufc aul- aula auld aulf aull aulo aulu auol c-cd caaa caac caaf caal cac- caca cacc caco cada cadc cadd cado cadu cafa cafc caff cafl cafu cala calc cald calf call calo calu caod caol cauc cauf caul cauo ccaa ccac ccad ccaf ccca cccc cccf cccl cccu ccdc ccdf ccfa ccfc ccfd ccff ccfl ccla cclc ccoc ccod ccuc cdaa cdac cdad cdda cddl cdfa cfaa cfac cfao cfca cfcf cfcl cfco cfda cfoa clad claf clau clcd cldc clod clof cloo clou clud coad coal coca coco cocu coda codd codl cofc coff col- cola cold coll colo colu cood coof cool coua coud coul cuau cuca cucc cuda cufa cufc cuff cufo cula culc culd cull culo daad daal daau daca dada dado dadu dafa dafc daff dafo dala dalf dall dalo dalu daou daud dcca dccc dccl dccu dcfc dddd ddlc ddoc dfaf dfcc dfco dfcu dffa dlco doal doca doco docu dod- doda dodd dodo doff dola dold dolf doll dolo dolu dood doof dool douc doud douf doul duaa duad dual duca duco duda dudd dudo dudu dufc duff dufu dula dulc dull dulo dulu duo- duul faaa faac faad faca facc fada fadd fado fafa fafc faff fafo fala falc fald fall falo falu faud faul fcal fcca fccf fcda fdca fdoa fdoc ffcc ffff flac flad flao flcl floc flod floo flou flud fluf fluo foad foaf foal foca foco foda fofo fola folc fold foll folo food foof fool foua foud foul fuad fuc- fuca fuda fudd fufc fuff fufu fula full fulu laaa laac laad laal laca lacc lacl laco lacu lada ladd lado ladu lafc laff lala lald lall lalo lalu laou laud lauf laul lcac lcad lcca lccc lcdd lcfc ldcf lfca lfcc llao llcc lldc lllc llll lloa lloc llod lloo llud loac load loaf loca locc loco locu loda lofa loff lola lold loll lolo looc lood loof lool loud loul louu luau luca luda ludd ludo luff lufu lula lull lulu luua oaau oafc oafo oall ocac ocad ocal occa occc ocfa oclc ocul odac odal odda oddd odla odoo odou ofcl off- offa offc offo offu ofla olac olaf olca olcc olfa olla ollo olof ooaa ooda ooff oola oold oolo oooo ouac ouad oucc oudc oufc ouff oula ould oulu ouu- uaca uafa uald uaoc uaua ucad ucal ucca ucdc ucdd ucfa ucla ucua udaa udad udal udau udca udoo ufcu uffa ulaa ulad ulcc ulco ulla ullo ulo- uloc ulua ulul uocc uofa uofl uofo uolc uulu uuoc uuuu