-ic a-a a-c a-i a-t aaa aac aai aak aao aar aas aat ac- aca acc aci ack aco acr acs act ai- aia aic aii aik aio air ais ait aka akc aki akk ako akr aks aoa aoc aoi aok aoo aor aos aot ar- ara arc ari ark aro arr ars art as- asa asc asi ask aso asr ass ast at- ata atc ati ato atr ats att c-- caa cac cai cak cao car cas cat cca ccc cci cck cco ccr ccs cct ci- cia cic cii cik cio cir cis cit cka ckc cki cko cks ckt co- coa coc coi cok coo cor cos cot cra crc cri crk cro crr crs crt csa csc csi csk cso csr css cst cta ctc cti ctk cto ctr cts ctt ia- iaa iac iai iao iar ias iat ica icc ici ick ico icr ics ict iia iic iii iio iir iis iit ika ikc iki ikk iko ikr iks ikt io- ioa ioc ioi ioo ior ios iot ir- ira irc iri irk iro irr irs irt is- isa isc isi isk iso isr iss ist ita itc iti itk ito its itt k-t ka- kaa kac kai kak kao kar kas kat kca kcc kci kck kcr kcs kct kia kic kii kik kio kir kis kit kkc kki kkk kkr kks kkt koa koc koi kok koo kor kos kot kra krc kri krk kro krr krs krt ksa ksc ksi ksk kso ksr kss kst kta ktc ktk kto ktr kts ktt o-i oaa oac oai oak oao oar oas oat oc- oca occ oci ock oco ocr ocs oct oia oic oii oik oio oir ois oit oka okc oki okk oko okr oks oo- ooa ooc ooi ook ooo oor oos oot or- ora orc ori ork oro orr ors ort os- osa osc osi osk oso osr oss ost ot- ota otc oti otk oto otr ots ott ra- raa rac rai rak rao rar ras rat rca rcc rci rco rcr rcs rct ria ric rii rik rio rir ris rit rkc rkk rko rks rkt roa roc roi rok roo ror ros rot rra rrc rri rrk rrr rrs rrt rsa rsc rsi rsk rso rsr rss rst rta rtc rti rtk rto rtr rts rtt saa sac sai sak sao sar sas sat sca scc sci sck sco scr scs sct sia sic sii sik sio sir sis sit sk- ska skc ski skk sko skr sks skt soa soc soi sok soo sor sos sot sr- sra src sri srk sro srr srs srt ss- ssa ssc ssi ssk sso ssr sss sst sta stc sti stk sto str sts stt taa tac tai tak tao tar tas tat tca tcc tci tck tco tcr tcs tct tia tic tii tik tio tir tis tit tka tkc tkk tko tkr tks tkt to- toa toc toi tok too tor tos tot tra trc tri trk tro trr trs trt tsa tsc tsi tsk tso tsr tss tst tta ttc tti ttk tto ttr tts ttt