hhhhh hhour ho-ho ho-oh hohot hokku hookt hoort horro horru horth horto hothr hotot hotto houtu hthrt huhuh hukok huork hurko hurok hurtt hurtu hutor hutto huttu huuru khoku khoro khour khuru khutu khuur ko-ko kohut kokko kokor kokot kokou kokur kokut kooru korku koror korro korth kortu koruk kotor kotto kottu kotur kouth kouto kroot krout krtok kruth kruto kukko kukok kukur kurku kurth kuruk kutho kutkh kuttu kutur oh-oh oh-ok ohour ohrot okkur okoho okoro okrut okuku okuru ooooh ooooo orkut orout orth- ortho ortok ortoo oruku oruro orutu othou othur otoku ototo otour otrok ottur ouoro outro outto ro-ro rohru rokkk rokot rokto rookh rotho rotko roto- rotor rotot rotto rouko routh routt rt-rk ruthu ruuth ruutu thoro thorr thort thoru thoth thour thout throo throt throu thurt thuru to-ho tohku tohot tokko toko- tokor tokuo tokur tookh tooth torht torok torro torto tortu toto- totok totoo touho touro troth trott trout truro truth ttttt tukur tuotu turko turku turok turot turro turtu turut tutku tutor tutto tuuru uh-oh uh-uh uhhoh uhhuh uhuru urkut urour urutu utkhu utro- utror uttur uturu ututo uuork uuuuu