a-a a-c a-t aaa aac aaf aar aat aau ac- aca acc acf acr act acu af- afa afc aff afr aft afu ar- ara arc arf arr art aru at- ata atc atf atr att atu au- aua auc auf aur aut c-- caa cac caf car cat cau cca ccc ccf ccr cct ccu cfa cfc cff cfr cft cfu cra crc crf crr crt cru cta ctc ctf ctr ctt ctu cua cuc cuf cur cut cuu faa fac faf far fat fau fca fcc fcf fcr fct fcu ffa ffc fff ffr fft ffu fra frc frf frr frt fru fta ftc ftf ftr ftt ftu fua fuf fur fut fuu ra- raa rac raf rar rat rau rca rcc rcf rcr rct rcu rfa rfc rff rfr rft rfu rra rrc rrf rrr rrt rru rta rtc rtf rtr rtt rtu rua ruc ruf rur rut ruu taa tac taf tar tat tau tca tcc tcf tcr tct tcu tfa tfc tff tfr tft tfu tra trc trf trr trt tru tta ttc ttf ttr ttt ttu tua tuc tuf tur tut tuu ua- uaa uac uaf uar uat uau uca ucc ucf ucr uct ucu ufa ufc uff ufr uft ufu ur- ura urc urf urr urt uru uta utc utf utr utt utu uua uuc uur uut uuu