a-a a-c a-t aaa aac aad aak aar aas aat aau ac- aca acc acd ack acr acs act acu ad- ada adc add adk adr ads adt adu aka akc akd akk akr aks aku ar- ara arc ard ark arr ars art aru as- asa asc asd ask asr ass ast asu at- ata atc atd atr ats att atu au- aua auc aud auk aur aus aut c-- caa cac cad cak car cas cat cau cca ccc ccd cck ccr ccs cct ccu cda cdc cdd cdk cdr cds cdt cdu cka ckc ckd cks ckt cra crc crd crk crr crs crt cru csa csc csd csk csr css cst csu cta ctc ctd ctk ctr cts ctt ctu cua cuc cud cuk cur cus cut cuu daa dac dad dak dar das dat dau dca dcc dcd dck dcr dcs dct dcu dda ddc ddd ddk ddr dds ddt ddu dka dkc dkk dkr dks dkt dku dra drc drd drk drr drs drt dru dsa dsc dsd dsk dsr dss dst dsu dta dtc dtd dtk dtr dts dtt dtu dua duc dud duk dur dus dut k-t ka- kaa kac kad kak kar kas kat kau kca kcc kcd kck kcr kcs kct kcu kda kdc kdk kdr kds kdt kdu kkc kkk kkr kks kkt kku kra krc krd krk krr krs krt kru ksa ksc ksd ksk ksr kss kst ksu kta ktc ktk ktr kts ktt ktu kuc kud kuk kur kus kut kuu ra- raa rac rad rak rar ras rat rau rca rcc rcd rcr rcs rct rcu rda rdc rdd rdr rds rdt rdu rkc rkk rks rkt rku rra rrc rrd rrk rrr rrs rrt rru rsa rsc rsd rsk rsr rss rst rsu rta rtc rtd rtk rtr rts rtt rtu rua ruc rud ruk rur rus rut ruu saa sac sad sak sar sas sat sau sca scc scd sck scr scs sct scu sda sdc sdd sdk sdr sds sdt sdu sk- ska skc skd skk skr sks skt sku sr- sra src srd srk srr srs srt ss- ssa ssc ssd ssk ssr sss sst ssu sta stc std stk str sts stt stu sua suc sud suk sur sus sut suu taa tac tad tak tar tas tat tau tca tcc tcd tck tcr tcs tct tcu tda tdc tdd tdk tdr tds tdt tdu tka tkc tkk tkr tks tkt tra trc trd trk trr trs trt tru tsa tsc tsd tsk tsr tss tst tsu tta ttc ttd ttk ttr tts ttt ttu tua tuc tud tuk tur tus tut tuu ua- uaa uac uad uak uar uas uat uau uca ucc ucd uck ucr ucs uct ucu uda udc udd udk udr uds udt udu uka ukc ukk ukr uku ur- ura urc urd urk urr urs urt uru usa usc usd usk usr uss ust usu uta utc utd utk utr uts utt utu uua uuc uur uus uut uuu