a-do aaaa aaac aaad aaar aaca aacc aacd aaco aacr aact aacu aada aadc aadt aadu aaoo aara aarc aard aaro aart aaru aata aatc aatt ac-t acaa acac acad acar acat acca accc accd acco acct accu acda acdc acdt acoa acod acor acot acou acr- acra acrc acro acrr acta actc acto actt actu acu- acuo acur acut adaa adac adad adao adar adat adcc adda addc addd addo addr addu adoc adod adoo ador adot adra adro adta adua adur aoca aora aort aotc aotd aout arac arad arar arat arau arc- arca arco arct arda ardc ardo ardu aroa arod aroo aror arr- arra arrc arro arrr arrt arru arta artc arto artr arua arud arut at-t ataa atac atad atar atat atca atcc atco atcr atdt atoc atod ator atot atra atrc atro atru atta atto attr attu atua atuc atur auaa auca auct audc audo aur- aura aurd auro aut- auto c-cd caaa caac caat cac- caca cacc caco cacr cada cadc cadd cado cadr cadu caod caor cara carc card caro carr cart cat- cata catc catd cato catt catu cauc cauo caut ccaa ccac ccad ccar ccat ccca cccc cccu ccdc ccdr ccoc ccod ccra ccrc ccrt cctc cctt ccuc ccut cd-r cdaa cdac cdad cdda cddr cdot coad coat coca coco coct cocu coda codd cood coot cor- cora corc cord coro corr cort cota cotc coto cott cotu coua coud cour cout crac crar crat crau crca crcc crcr crda crdc croc crod croo cror crot crrt crtc crud crut ctca ctor ctot ctrc ctta cuau cuca cucc cuda cura curd curo curr curt cut- cuta cutc cuto cutt daad daar daau daca dact dada dado dadu daou dara darc dard daro darr dart daru data dato datr datt datu daud daur daut dcca dccc dcct dccu dcra dctc dddd ddoc ddot ddrc doar doat doca doco doct docu dod- doda dodd dodo dood door doot dora dorc dord doro dorr dort doru dota dotd doto dott douc doud dour dout draa drac drad drar drat drau drca drda drod drot drou drra drua drut druu dtaa dtac dtcc dtor dtot duaa duad duar duat duca duco duct duda dudd dudo dudu duo- dura duro durt duru duta duur duut oaau oara ocac ocad ocat occa occc occt ocra ocro ocrr oct- octa octo ocur odac odda oddd odoo odor odot odou odra odtu odur ooaa oocr ooda oooo oora oord oort orac orad orao orar orat orca orco orda ordo ordu oro- oror orot orra orro orta ortc orto otac otar otcd oto- otoo otor otra otro otta otto ottu otur ouac ouad ouat oucc oudc our- oura ouro ourt out- outa outo ouu- raad raat rac- raca racc raco ract racu rada radc radd rado radr radt radu raoc rara raro rata rato ratt ratu raua rauc raud raut rcac rccc rcdc rcrd rctc rdac rdoc road roar roat roca rocc roco roda rodd rodo rood roor root rora rorc roro rort roru rota rotc roto rotr rott roua roud rout rrad rrat rrrr rtca rtcc rtdt ruad ruca ruct ruda rudd rudo rura rurc rurd ruro ruru ruta ruto rutt rutu ruud taa- taar taat taca tacc taco tact tada tado taoa taor taou tara tarc tard taro tarr tart taru tata tato tatr tatt tatu taua tauc taur taut tcad tcca tccc tccu tcdd tctc tdac tdor tdra toad toat toau toca toco toda todd todo todt todu tooa tood toor toot tora torc tord toro torr tort toru tota totc totd toto totr tott tour tout traa trac trad trao trat trau trca trcc troa troc trod troo trot trou trra trtc trtr truc trud trut truu tttt tuao tuar tuat tuca tucc tuco tudu tuor tura turc turd turo turr turt turu tuta tuto tutt tutu tuuo uaca uaoc uarc uart uaru uata uatu uaua ucad ucar ucat ucca ucdc ucdd ucrc ucua ucut udaa udad udar udau udca udoo udot udra uocc uor- urac urad urao urat urau urca urda urdu uro- uroa uroo urra urur urut utac utau utor utto uttu uuoc uuta uuuu