k-os kkkk kknn kkno kkns kkon kkoo kkov kksn kkss kkvv knkk knnk knns knok knon knsk knsn knso knss knvn knvo kokk kokn koko koks konk kono kook koon kooo koos koov kos- koso koss kovk kovo kskk kskn ksko ksks ksnk ksnn ksns ksnv ksok kson ksoo ksos kssn ksso ksss ksvn kvnn kvno kvns kvok kvon kvoo kvov kvso kvss kvsv kvvn kvvs kvvv nkok nnnn nnos nnss noko non- nonn nono nons noo- nook noon nooo noos noov nos- nosk noss nov- novo nskk nsok nsos nsso nsss nvss okko okno okok okon okso onno onon onos onso oons oooo ooos osno osoo osos osov osso ovo- ovon ovoo s-os skn- skon skov skss snns snoo snos snov sokk sokn soko son- sonk sono sons sook soon soos soso soss sosv sovo sovs ssns ssss svns vnso voks vonk vonn vons voso voss vovk vvvv