iii iim iio iip iis iki ikk iko iks im- imi imm imo imp ims io- ioi iom ioo iop ios ipi ipm ipo ipp ips is- isi isk ism iso isp iss kii kik kim kio kip kis kki kkk kkm kkp kks kmi kmk kmm kmo kmp kms koi kok kom koo kop kos kpi kpk kpm kpo kpp kps ksi ksk ksm kso ksp kss m-o mi- mii mik mim mio mip mis mkk mkm mko mkp mks mmi mmk mmm mmo mmp mms moi mok mom moo mop mos mpi mpk mpm mpo mpp mps msi msk msm mso msp mss o-i oii oik oim oio oip ois oki okk oko okp oks om- omi omm omo omp oms oo- ooi ook oom ooo oop oos op- opi opk opm opo opp ops os- osi osk osm oso osp oss p-p pii pik pim pio pip pis pki pkm pko pkp pks pmi pmk pmm pmo pmp pms poi pok pom poo pop pos ppi ppk ppm ppo ppp pps ps- psi psk psm pso psp pss sii sik sim sio sip sis sk- ski skk skm sko skp sks smi smk smm smo smp sms soi sok som soo sop sos spi spk spm spo spp sps ss- ssi ssk ssm sso ssp sss