iii iin iio iip iir iis iki ikk iko ikr iks in- ini ink inn ino inp inr ins io- ioi ion ioo iop ior ios ipi ipn ipo ipp ipr ips ir- iri irk irn iro irp irr irs is- isi isk isn iso isp isr iss izi izo izz k-z kii kik kin kio kip kir kis kiz kki kkk kkn kkp kkr kks kn- kni knk knn kno knp knr koi kok kon koo kop kor kos koz kpi kpk kpn kpo kpp kpr kps kri krk krn kro krp krr krs ksi ksk ksn kso ksp ksr kss kzo n-i nii nik nin nio nip nir nis niz nki nkk nkn nko nkp nkr nks nni nnk nnn nno nnp nns nnz no- noi nok non noo nop nor nos noz npi npn npo npp npr nps npz nri nrk nrn nro nrp nrr nrs nrz nsi nsk nsn nso nsp nsr nss nsz nzi nzo nzp nzs nzz o-i oii oik oin oio oip oir ois oiz oki okk oko okp okr oks on- oni onk onn ono onp onr ons oo- ooi ook oon ooo oop oor oos op- opi opk opn opo opp opr ops or- ori ork orn oro orp orr ors orz os- osi osk osn oso osp osr oss ozo ozs ozz p-p pii pik pin pio pip pir pis piz pki pkn pko pkp pkr pks pn- pni pnk pnn pno pnp pnr pns poi pok pon poo pop por pos poz ppi ppk ppn ppo ppp ppr pps ppz pri prk prn pro prp prr prs prz ps- psi psk psn pso psp psr pss pzk pzp rii rik rin rio rip rir ris riz rkk rko rkp rks rkz rni rnn rno rnp rnr rns rnz roi rok ron roo rop ror ros roz rpi rpk rpn rpo rpp rpr rps rpz rri rrk rrn rrp rrr rrs rsi rsk rsn rso rsp rsr rss rzo sii sik sin sio sip sir sis sk- ski skk sko skp skr sks sni snk snn sno snp snr sns soi sok son soo sop sor sos soz spi spk spn spo spp spr sps spz sr- sri srk srn sro srp srr srs ss- ssi ssk ssn sso ssp ssr sss ssz szi szp szr zik zin zio zip zir zis ziz zks znn zno znp zns zo- zoi zok zon zoo zor zos zpi zpo zpp zpr zro zrp zrs zsi zsz zzr zzs zzz