kkk kkm kkp kkr kks kmk kmm kmo kmp kms kok kom koo kop kor kos kpk kpm kpo kpp kpr kps krk kro krp krr krs ksk ksm kso ksp ksr kss m-o m-r mkk mkm mko mkp mkr mks mmk mmm mmo mmp mmr mms mok mom moo mop mor mos mpk mpm mpo mpp mpr mps mrk mrm mro mrp mrr mrs msk msm mso msp msr mss okk oko okp okr oks om- omm omo omp omr oms oo- ook oom ooo oop oor oos op- opk opm opo opp opr ops or- ork orm oro orp orr ors os- osk osm oso osp osr oss p-p pkm pko pkp pkr pks pmk pmm pmo pmp pmr pms pok pom poo pop por pos ppk ppm ppo ppp ppr pps prk prm pro prp prr prs ps- psk psm pso psp psr pss rkk rkm rko rkp rks rmm rmo rmp rmr rms rok rom roo rop ror ros rpk rpm rpo rpp rpr rps rrk rrm rrp rrr rrs rsk rsm rso rsp rsr rss sk- skk skm sko skp skr sks smk smm smo smp smr sms sok som soo sop sor sos spk spm spo spp spr sps sr- srk srm sro srp srr srs ss- ssk ssm sso ssp ssr sss