hhhhh hi-hi hi-lo hikki hikoi hilli hillo hipil hipo- hipop hipp- hippi hippo hlokk ho-ho ho-oh hohol hoill hokki hoklo holik holli hollo holo- hooli hoopl hopko hopl- hoppo hp-il iiiii ikolo ilio- iloko ilook ioooi ioooo k-pop khopi ki-hi kiiki kiili kikki kikko kikoi kikol kill- killi kilo- kiloi kiloo kilpi kioko kipoi kippo kizhi kizil klopp ko-ko kohki kohli kohol koili kokil kokki kokko kokoi kolhi kolho kolki kolli kollo koloi kolol kooki kooli koozh kopli kopoi koppl kozki kozli kpilo kpolo l-pop lhohi likho likli lilli lillo lipik lipki lipo- lippi lippo lizio lizzi lizzo lohho lohio loilo lolli lollo lolol looph loopz loph- lopik loppi lozio lozki lozzi oh-oh oh-ok ohiki oiko- okhli okoho okoki okpho okpik ollio ooioo ooooh ooooo ophi- ophio opihi opik opiki opio- oploo opoho opoki oppol phil- phill philo philp phiph phizo phizz phlio phlpp phool pikol pikoo pili- pilio pillo pilo- pioli pipil pipli pippi pippo pizki pizol pizzi pizzo pkill pkzip plio- plook ploop plopi plopp po-po pohio poill pokhi pokki pokli poli- polik polio polip polki polko polli pollo polop polzl pooki pooli poopo popil popki popoi popop poppi poppo pozol pozzi pozzo zhili ziliz zilli zillo zippo zizik zizki zizoo zizzi zoili zokol zollo zooph zoppo zzzzz