a-a aaa aak aam aan aao aar aas aka akk akm akn ako akr aks ama amk amm amn amo amr ams an- ana ank anm ann ano anr ans aoa aok aom aon aoo aor aos ar- ara ark arm arn aro arr ars as- asa ask asm asn aso asr ass ka- kaa kak kam kan kao kar kas kkk kkm kkn kkr kks kma kmk kmm kmo kms kn- kna knk knm knn kno knr koa kok kom kon koo kor kos kra krk krn kro krr krs ksa ksk ksm ksn kso ksr kss m-o m-r maa mak mam man mao mar mas mka mkk mkm mkn mko mkr mks mma mmk mmm mmn mmo mmr mms mna mnk mnm mnn mno mnr mns moa mok mom mon moo mor mos mra mrk mrm mrn mro mrr mrs msa msk msm msn mso msr mss naa nak nam nan nao nar nas nka nkk nkm nkn nko nkr nks nma nmk nmm nmn nmo nmr nms nna nnk nnm nnn nno nns no- noa nok nom non noo nor nos nra nrk nrm nrn nro nrr nrs nsa nsk nsm nsn nso nsr nss oaa oak oam oan oao oar oas oka okk oko okr oks om- oma omm omn omo omr oms on- ona onk onn ono onr ons oo- ooa ook oom oon ooo oor oos or- ora ork orm orn oro orr ors os- osa osk osm osn oso osr oss ra- raa rak ram ran rao rar ras rkk rkm rko rks rma rmm rmn rmo rmr rms rna rnm rnn rno rnr rns roa rok rom ron roo ror ros rra rrk rrm rrn rrr rrs rsa rsk rsm rsn rso rsr rss saa sak sam san sao sar sas sk- ska skk skm sko skr sks sma smk smm smn smo smr sms sna snk snm snn sno snr sns soa sok som son soo sor sos sr- sra srk srm srn sro srr srs ss- ssa ssk ssm ssn sso ssr sss