-ic a-a a-c a-i aaa aac aai aak aao aap aar aas ac- aca acc aci ack aco acp acr acs ai- aia aic aii aik aio aip air ais aka akc aki akk ako akp akr aks aoa aoc aoi aok aoo aop aor aos ap- apa apc api apk apo app apr aps ar- ara arc ari ark aro arp arr ars as- asa asc asi ask aso asp asr ass c-- caa cac cai cak cao cap car cas cca ccc cci cck cco ccp ccr ccs ci- cia cic cii cik cio cip cir cis cka ckc cki cko cks co- coa coc coi cok coo cop cor cos cpa cpc cpi cpk cpo cpp cpr cps cra crc cri crk cro crp crr crs csa csc csi csk cso csp csr css ia- iaa iac iai iao iap iar ias ica icc ici ick ico icp icr ics iia iic iii iio iip iir iis ika ikc iki ikk iko ikr iks io- ioa ioc ioi ioo iop ior ios ipa ipc ipi ipo ipp ipr ips ir- ira irc iri irk iro irp irr irs is- isa isc isi isk iso isp isr iss ka- kaa kac kai kak kao kap kar kas kca kcc kci kck kcp kcr kcs kia kic kii kik kio kip kir kis kkc kki kkk kkp kkr kks koa koc koi kok koo kop kor kos kpa kpc kpi kpk kpo kpp kpr kps kra krc kri krk kro krp krr krs ksa ksc ksi ksk kso ksp ksr kss o-i oaa oac oai oak oao oap oar oas oc- oca occ oci ock oco ocp ocr ocs oia oic oii oik oio oip oir ois oka okc oki okk oko okp okr oks oo- ooa ooc ooi ook ooo oop oor oos op- opa opc opi opk opo opp opr ops or- ora orc ori ork oro orp orr ors os- osa osc osi osk oso osp osr oss p-p paa pac pai pak pao pap par pas pca pcc pci pck pco pcp pcr pcs pia pic pii pik pio pip pir pis pka pkc pki pko pkp pkr pks poa poc poi pok poo pop por pos ppa ppc ppi ppk ppo ppp ppr pps pra prc pri prk pro prp prr prs ps- psa psc psi psk pso psp psr pss ra- raa rac rai rak rao rap rar ras rca rcc rci rco rcp rcr rcs ria ric rii rik rio rip rir ris rkc rkk rko rkp rks roa roc roi rok roo rop ror ros rpa rpc rpi rpk rpo rpp rpr rps rra rrc rri rrk rrp rrr rrs rsa rsc rsi rsk rso rsp rsr rss saa sac sai sak sao sap sar sas sca scc sci sck sco scp scr scs sia sic sii sik sio sip sir sis sk- ska skc ski skk sko skp skr sks soa soc soi sok soo sop sor sos spa spc spi spk spo spp spr sps sr- sra src sri srk sro srp srr srs ss- ssa ssc ssi ssk sso ssp ssr sss