a-a aaa aak aap aar aas aka akk akp akr aks ap- apa apk app apr aps ar- ara ark arp arr ars as- asa ask asp asr ass ka- kaa kak kap kar kas kkk kkp kkr kks kpa kpk kpp kpr kps kra krk krp krr krs ksa ksk ksp ksr kss p-p paa pak pap par pas pka pkp pkr pks ppa ppk ppp ppr pps pra prk prp prr prs ps- psa psk psp psr pss ra- raa rak rap rar ras rkk rkp rks rpa rpk rpp rpr rps rra rrk rrp rrr rrs rsa rsk rsp rsr rss saa sak sap sar sas sk- ska skk skp skr sks spa spk spp spr sps sr- sra srk srp srr srs ss- ssa ssk ssp ssr sss