iii iin iio iip iis iki ikk iko iks in- ini ink inn ino inp ins iny io- ioi ion ioo iop ios ipi ipn ipo ipp ips ipy is- isi isk isn iso isp iss isy iyo iys iyy kii kik kin kio kip kis kki kkk kkn kkp kks kky kn- kni knk knn kno knp koi kok kon koo kop kos koy kpi kpk kpn kpo kpp kps ksi ksk ksn kso ksp kss kyn kyo kyp kys n-i nii nik nin nio nip nis nki nkk nkn nko nkp nks nky nni nnk nnn nno nnp nns no- noi nok non noo nop nos noy npi npn npo npp nps nsi nsk nsn nso nsp nss nsy nyk nyn nyo nyp nys nyy o-i oii oik oin oio oip ois oki okk oko okp oks on- oni onk onn ono onp ons ony oo- ooi ook oon ooo oop oos op- opi opk opn opo opp ops opy os- osi osk osn oso osp oss oyi oyo oys p-p pii pik pin pio pip pis pki pkn pko pkp pks pky pn- pni pnk pnn pno pnp pns pny poi pok pon poo pop pos poy ppi ppk ppn ppo ppp pps ps- psi psk psn pso psp pss psy py- pyk pyn pyo pys sii sik sin sio sip sis sk- ski skk sko skp sks sky sni snk snn sno snp sns sny soi sok son soo sop sos soy spi spk spn spo spp sps spy ss- ssi ssk ssn sso ssp sss sy- syi syk syn syp sys yii yin yio yip yis yki ykk ykn ynk ynn ynp yns yny yoi yok yon yoo yop yos yoy ypo yps ysi ysk yso ysp yss ysy yys yyy