hhhhh hhour hi-hi himom hipo- hipop hipp- hippi hippo hiroi hirom hiroo hirur ho-ho ho-oh hohim hohum homo- hoori hoppo hopup horii horim horio horom horro horru horup hou-i houir houri hrmph huhuh humir humor humph humur hurm hurmi hurri hurum hurup huuru i-m-r iiiii imhip impir impro impur iommi ioooi ioooo iorio ipour irimi irori irour irupi m-rip mhorr mi-mi mihop mimio mimir mimmi mimo- mimpi miour mipim mipro mirim mirrh mirri mmhmm mmiii mmmmm mmpip mohor mohri mohur momir momoi moooi moori mooro moppi mopup morio mormo moroi morop moror morou morph morro morum morup mouri mpiri mprim mrmom mrorr mrpii mrpim muiri mummu muppu murmi muroi murom muror murph murrh murri murro murru murum murup o-hum oh-oh ohiou ohmmm ohour ohrio ohrum omoro omupo ooioo oomph ooooh ooooo ophi- ophio ophir ophur opihi opio- opir opium opoho oppum opump orhim orium ormur oromo oropi orrum oruro ouihi ouir- ouoro phhir phimu phiph phiri phorm phrop piiri pippi pippo pipri pirho pirou pirri pirro pirui pirum piuri piuro piuru po-po pohio poipu pomi- pomor pompu pomum poopo poori popoi popop poppi poppo popup poro- poroi porri porro porum porur primi primm primo primp prior promo proor prop- propp propr puhmu puhoi puppo pupri purim purio purmo puro- purum puuri rimmi rimou rimpi rimur ripio ripup rirpu ro-ro rohri rohru rompo rompu roohi roomu roumi roumm rprop ruiru rummi rummo rummu rumor rumpo ruomu u-pop uh-oh uh-uh uhhoh uhhuh uhuru uiro umhum umiri umour uromi uropi urour urphi urpmi urumi ururi uuuuu