b-r-k bbook bfrog bholu bhook bhool bhour blook bloor blorb bluff blufr blurb blurr bo-bo bo-ho bobko bobok bobr boffo bogof bogor bogu bogur bohok bohol bohor bokko bokok bokor bolho bolko boll- bollo bollu bolok boluk booko booru borbo borgh borgo borgu borko borku boro- borok boroo borou borro borul bough bouko boul- boulo bourg brlog brloh brobo brogh brohl broll brolo brook brool brouk brrrr bruff brugg brugh bruhl brull buffo bugok bugol bugoo bukk- bukor bulb- bull- bulok bulou bulul buoho burgh burgk burgo burgu burol buroo burro burru buruk flogh flogo flohr floko flook floor floro floru flouh flour fluff fluo- fluor flurb flurr fogbo foggo fogou follo forgo forro foruh forur fough fougo fourb fourg fourh fouro frugo fruko fu-fu fugro fugug fullf fullo furbo furo- furor g-log gboko ggulu ghoff ghoul ghour ghubb globo gloff glogg glogh gloor glour glubb gluff go-go go-lo go-oo gobbo gofor gogok gogol gogro gogul gohl gohog gohor gohur gokul golbo golfg golfo gollu golob golog golok golol golub golug goobo gooff goooh gorgl gorgo gorlo goruh gough goulf gourl grgur groff grogg grohl grokk groll groof grook grouf groul grrrl grrrr grubb gruff gubbo gubru gugul gukgo gulko gulo- gulou gurko guroo gurro gurur hbogo hhhhh hhour hlokk ho-ho ho-oh hobol hobor hobro hobub hofuf hoful hohol hokku hoklo holbr holgh hollo holo- holor holou holub holul horol horro horru houff hough hrolf hu-go hubur huggo huglo huhuh hukok hullo huolu huork hurko hurll hurok huuru k-rob kbool khlog khoku khoro khour khufu khull khulo khuru khuur klogr kloof ko-ko kobol kobru kobuk kobul koghb kogho koglo kogro kohlu kohol kokko kokor kokou kokur kolbu kolff kolgu kolho kollo kollu kolob kolol kolur koogu koolu kooru korbo korff korgu korku korol koror korro koruk koufu koulo krogh krohg kroll krull kubok kubul kugur kukko kukok kukur kullo kullu kulob kulor kulul kulur kurbu kurgo kurku kurlu kuruk lobbo lobo- lobor lofou logko logo- logol lohho lohur lokur lollo lolol loobu lookf loruk lough louro lubok lubur lugol lukho lukko lukok lukou lulul luogu lurgg o-r-b obhor oblog obolo oboro obrok offof ofour oghur ogogo ogugu oh-oh oh-ok ohfoo ohour ohrob okfol okkur okobo okoho okoro okrog okrug okubo okuku okuru ollur olour ooooh ooooo orfor orful orgul orlok orobo orolu orrgo oruku oruro oullo ouoro ourol ro-ro robbo robo- robor robur rofor rogho rohff rohob rohru rokkk rolfo rollo rolok rookh rorbu rough rouko roulk roull rubof rubor ruffo rufo- rufol rughh ruhub rullo ubobo ufofu uforb ugluk ugoff ugro- ugrug uh-oh uh-uh uhhoh uhhuh uhuru ukobu ukuug ullur ululu uluru uroob urour urubu uuork uuuuu