hhh hhk hho hhr hhs hhu hkh hkk hko hkr hks hku hoh hok hoo hor hos hou hr- hrh hrk hro hrr hrs hru hsh hsk hsr hss hsu huh huk huo hur hus huu khh khk kho khr khs khu kkh kkk kkr kks kku koh kok koo kor kos kou krk kro krr krs kru ksh ksk kso ksr kss ksu kuh kuk kur kus kuu ohh oho ohr ohs ohu okk oko okr oks oku oo- ooh ook ooo oor oos or- orh ork oro orr ors oru os- osh osk oso osr oss osu ou- ouh ouk ouo our ous rh- rhh rho rhr rhs rhu rkk rko rks rku roh rok roo ror ros rou rrh rrk rrr rrs rru rsh rsk rso rsr rss rsu ruh ruk ruo rur rus ruu sh- shh shk sho shr shs shu sk- skh skk sko skr sks sku soh sok soo sor sos sou sr- srh srk sro srr srs ss- ssh ssk sso ssr sss ssu suh suk suo sur sus suu uhh uho uhr uhs uhu ukk ukr uku uok uoo uor uos ur- urk uro urr urs uru ush usk uso usr uss usu uur uus uuu