h-i hhh hhi hhk hho hhp hhs hih hii hik hio hip his hkh hki hkk hko hkp hks hoh hoi hok hoo hop hos hph hpi hpk hpo hpp hps hsh hsi hsk hsp hss ihh ihi ihk iho ihp ihs iih iii iio iip iis iki ikk iko iks io- ioh ioi ioo iop ios ipi ipo ipp ips is- ish isi isk iso isp iss khh khi khk kho khs kih kii kik kio kip kis kkh kki kkk kkp kks koh koi kok koo kop kos kph kpi kpk kpo kpp kps ksh ksi ksk kso ksp kss o-i ohh ohi oho ohp ohs oii oik oio oip ois oki okk oko okp oks oo- ooh ooi ook ooo oop oos op- oph opi opk opo opp ops os- osh osi osk oso osp oss p-p phi phk pho php phs pih pii pik pio pip pis pki pko pkp pks poh poi pok poo pop pos pph ppi ppk ppo ppp pps ps- psh psi psk pso psp pss sh- shh shi shk sho shp shs sih sii sik sio sip sis sk- skh ski skk sko skp sks soh soi sok soo sop sos sph spi spk spo spp sps ss- ssh ssi ssk sso ssp sss