a-a a-c a-t aaa aac aak aao aar aat aau ac- aca acc ack aco acr act acu aka akc akk ako akr aku aoa aoc aok aoo aor aot aou ar- ara arc ark aro arr art aru at- ata atc ato atr att atu au- aua auc auk auo aur aut c-- caa cac cak cao car cat cau cca ccc cck cco ccr cct ccu cka ckc cko ckt co- coa coc cok coo cor cot cou cra crc crk cro crr crt cru cta ctc ctk cto ctr ctt ctu cua cuc cuk cuo cur cut cuu k-t ka- kaa kac kak kao kar kat kau kca kcc kck kcr kct kcu kkc kkk kkr kkt kku koa koc kok koo kor kot kou kra krc krk kro krr krt kru kta ktc ktk kto ktr ktt ktu kuc kuk kur kut kuu oaa oac oak oao oar oat oau oc- oca occ ock oco ocr oct ocu oka okc okk oko okr oku oo- ooa ooc ook ooo oor oot or- ora orc ork oro orr ort oru ot- ota otc otk oto otr ott otu ou- oua ouc ouk ouo our out ra- raa rac rak rao rar rat rau rca rcc rco rcr rct rcu rkc rkk rko rkt rku roa roc rok roo ror rot rou rra rrc rrk rrr rrt rru rta rtc rtk rto rtr rtt rtu rua ruc ruk ruo rur rut ruu taa tac tak tao tar tat tau tca tcc tck tco tcr tct tcu tka tkc tkk tko tkr tkt to- toa toc tok too tor tot tou tra trc trk tro trr trt tru tta ttc ttk tto ttr ttt ttu tua tuc tuk tuo tur tut tuu ua- uaa uac uak uao uar uat uau uca ucc uck uco ucr uct ucu uka ukc ukk ukr uku uoa uoc uok uoo uor uot ur- ura urc urk uro urr urt uru uta utc utk uto utr utt utu uua uuc uur uut uuu