bi-lo bibbo bibio bibri bilbi bilbo bili- billi billo billu bilut bioul bipib bipil birol birou birur bitit bitop bitru bitti bitto bitup blirt blitt bloop bloor blorb blorp blort bloto blott blout blurb blurr blurt bluto bo-bo bobbi bobr bobri bobup boilo boiro boito boll- bolli bollo bollu bolti bolto booit boort booru bopit borbo borio boro- boroo borot borou borro borul borup borut botou botro botti bottu boul- bouli boulo boult bouri bouto brill briot briou brito britt brobo broil broll brolo brool broto brout brrrr bruit bruiu brull bruri btr-t built bulb- bulbi buliu bull- bulli bulou bulti bulto bulul bulut buolt burio burli burol buroo burri burro burru burtt burut butit buto- butor butot butou butuo butut i-bot ibbur ibibo ibill iiiii iitti ilio- illit illui ilobu ilori iltur ilulu iobit ioooi ioooo iorio iotit iotti ipiti ipopt iport ipour ipubi irbit irill irobo irori irour irrit irupi itbit itobi itour itout itpro itrip ittoo ittti itu-r itu-t ituri ituro ituru itutu iuliu iuput l-pop liboi libor libri libro libru liliu lilli lillo lilou liour lipo- lipot lippi lippo liril lirio lirot lirui litir littb litti litui litup liubo liuli liupo lobbo lobi- lobio lobir lobo- lobor loibl loilo lolli lollo lolol lolti loobu loopt lopit lopou loppi lorio lorri lorup lorut lotio lotor lotru lotti lotto louit louri louro lubur luiro lulli lulul luppi lupul lurio lurup lutol lutto lutui luuri o-r-b oblio oboli obolo oboro obout oilit oilup oirot oitti ollio ollup ollur olotu olour oobit ooioo ooooo opio- opir opito oploo oplot opobo oppol optio opto- optot optto orbit orbot oribi orill oriol orito orlop orobo orolu oropi orout orpit ortoo oruro orutu otobi otoli otolo otori ototo otour otpor ottir ottoi ottur otulu oubit oubut ouir- oullo ouoro ourol outro outto pibor piilu piiri pili- pilio pillb pillo pilo- pilot pilou pilrb pilur pilut pioli piotr pipil pipit pipli pippi pippo pipri pipul pirlo pirol pirot pirou pirri pirro pirui pitio pitip pitot pitri pitru pitti pitto piuri piuro piuru plio- plitt ploop ploot plopi plopp plopu plott plout pluit pluot plupp pluri plut- pluti pluto po-po poill poilu poipu polbo poli- polio polip polit polli pollo pollu polop polti polur polut pooli poopo poori poort popil poplr popoi popop poppi poppo popup poro- poroi porri porro porto portu porur potoo potop potor potro potti potto pottu poulp poult priit prill priob priol prior priti pritt probo proll prolo proor proot prop- propl propp propr propt prot- proti proto prout prtor ptil- ptprb ptpro ptprr ptprt ptpru pubo- puilo pull- pulli pullu pulut pupil puppo pupri purio purli puro- purul putit putor putt- putti putto puttu putuo putup puuri ribbi ribo- ribot ribup rillo rioli riolo ripio ripit ripup rirpu ro-ro robbi robbo robo- robop robor robot robrt robur roiot rollo rorbu roto- rotol rotor rotot rotti rotto roubt roull routt rprop rptor rubbi rubio rubor rubup ruili ruiru rulli rullo ruoti rupit rutli rutul ruutu t-pop t-top tbill tbolt tbtbt tbutt ti-ti tibbi tibbu tibor tibro tibur tilip tilli tillo tiout tipil tipit tippi tippu tipto tipup tirit tirli tiro- tiroi tirol tirou tirru tirtl tirur titii titil titli titlo titou titti titup tllbr tobit tobol tobor tobot tobou toili toill tolbo tolli tollo toloo tolor tolu- tolui toolt topbt topio topit toplo topo- topoi topol topor topot toppo toptb topto topup torii toril torio torit torob torpo torri torro torti torto tortu torul toti- toto- totoo totop totup touil touit toull touro tprot tribu triip trill triol trior tripi tripl tripp tript trit- trito tritt troil troll troop trop- tropi tropo trott troul troup trout trubu truit trull trupt truro ttttt tubi- tubli tubo- tubou tubri tubul tuili tulio tulip tulir tulor tulou tului tuori tuotu tupou tuppi turbi turbo turbt turio turit turot turri turro turtu turul turup turut tutli tutor tutti tutto tuubi tuuli tuuri tuuru u-bit u-pop ubirr ubobo ubolt uiro uitti ullur uloop ulpur ultio ultop ululu ulupi uluru uluti uplit upolo upolu uppli upput uptop uroob uropi urour urtlu urubu uruit uruli ururi uruti urutu utili utro- utrop utror uttur uturu ututo uuuuu