-hou bbbb bbeb bebb bebe bebo beeb beek beke beko beo- beok beuk bhuu bobb bobe bobo bobu boee boeo boho bohu boke boko boku boob booe booh book boue bouh bouk bubb bube bubo bubu bueu buhe buho buke bukh bukk buko buku ebbo eboe eboo eeee eeke eheh eheu ekeb ekek ekho hebb hebe hebo heeb heek hehe heho heke heku heou heue heuk hhhh hkbu hobe hobo hoek hohe hoho hoke hoko hoku hooe hook houe houk hubb hube hubo huhu huke huub kbbb kbbe kbbk kbbo kbbu kbeb kbee kbeh kbek kbeo kbhb kbhe kbhh kbkb kbkk kbko kbob kboe kbok kboo kbub kbue kbuk kbuu kebb kebe kebu keeh keek kehk kekb keke keko keku keok kheb khhk khho khke khkk khob khoe khok khou khub khuk kkbb kkbe kkbo kkhb kkhh kkhk kkkk kkob kkoh kkoo kkuu kobb kobe kobk kobo kobu kohh koho kohu kokb koke kokh kokk koko koku koob kook kooo koou koub koue kouu kubb kube kubo kubu kuek kueu kuhu kuke kukh kukk kuku kuok kuoo kuub kuuk kuuu o-eo obbo obkb oboe obok obuh ohbe ohee ohho ohob ohoh ohok okeh okko okok oobe ooho ooku oooh oooo ouu- ubbe ubbo ubek uhoh uhok uhuh ukek ukeu ukko ukok uoke uuuu