a-ak a-ok aaaa aaae aaav aaea aaev aaka aake aaoe aaoo aava aeka aeva akaa akae akao akee akka akko akok avao avea aveo avva avvo eave eeea eeee eeka eeke eeva eka- ekek ekka ekoa eoka evae evea evoe evoo evvk kaaa kaak kaeo kaka kake kakk kako kaoa kaok kava kave kavo kavv kea- keak keek keka keke keko keok keva keve kkaa kkea kkkk kkoa kkoo kkov kkvv koae koak koea koka koke kokk koko kook kooo koov kova kove kovk kovo kvak kvea kvoa kvoe kvok kvoo kvov kvvv o-eo oake okak okka okko okok ooaa ooak oooo ovee ovo- ovoo vaka vake vava veak veka veke veve vevo voka voke vovk vvvv