hhhhh hhour ho-ho ho-oh hohot hoort horro horru horth horto hothr hotot hotto houtu hrhov hthrt huhuh hurtt hurtu hutor hutto huttu huuru oh-oh ohour ohrot ooooh ooooo oovoo orout orth- ortho ortoo oruro orutu othou othur ototo otour otrov ottov ottur ouoro outro outto outtv ro-ro rohov rohru rotho roto- rotor rotot rotto routh routt rttov ruthu ruuth ruutu t-v-h thoro thorr thort thoru thoth thour thout throo throt throu thurt thuru to-ho tohot tooth torht torro torto tortu toto- totoo touho touro troth trott trout trovo truro truth trutv truvo ttttt tuotu turot turov turro turtu turut turvo tutor tutto tuuru uh-oh uh-uh uhhoh uhhuh uhuru urour urutu utro- utror uttur uturu ututo uuuuu uvrou v-hut vooru vorth votto vurot vutov