hhh hhk hhn hho hhr hhs hkh hkk hkn hko hkr hks hnh hnk hnn hno hns hoh hok hon hoo hor hos hr- hrh hrk hrn hro hrr hrs hsh hsk hsn hsr hss khh khk khn kho khr khs kkh kkk kkn kkr kks kn- knk knn kno knr koh kok kon koo kor kos krk krn kro krr krs ksh ksk ksn kso ksr kss nhh nhk nhn nhr nhs nkk nkn nko nkr nks nnh nnk nnn nno nns no- noh nok non noo nor nos nrk nrn nro nrr nrs nsh nsk nsn nso nsr nss ohh ohn oho ohr ohs okk oko okr oks on- onh onk onn ono onr ons oo- ooh ook oon ooo oor oos or- orh ork orn oro orr ors os- osh osk osn oso osr oss rh- rhh rhn rho rhr rhs rkk rko rks rnh rnn rno rnr rns roh rok ron roo ror ros rrh rrk rrn rrr rrs rsh rsk rsn rso rsr rss sh- shh shk shn sho shr shs sk- skh skk sko skr sks snk snn sno snr sns soh sok son soo sor sos sr- srh srk srn sro srr srs ss- ssh ssk ssn sso ssr sss