-hou bbbb bbch bbeb bblb bbrc bcbc bccc bccl bcec bcer bche bcor bcru bcuc bebb bebe bebo bech becu beeb beel beer behr bele bell belo belu beo- beor berc bere bero berr beru beur bhcc bhel bher bhor bhur bhuu blcu bleb blee bleh bleo bleu blob bloc bloo blou blrc blub blue blur bobb bobe bobo bobu boce boch boco bocu boec boee boel boeo boer bohl boho bohr bohu bole boll bolo bolu boob booc booe booh bool boor bor- bore borh boro borr boru boue bouh boul bour brcb brce breb brec bree brel breo brer brob broc broe broh brol broo bror brou brrr bruc brue bruh bubb bube bubo bubu bucc buce buch buco bucu buel buer bueu buhe buhl buho buhr bulb bule bull bulu buol bur- burb bure burh burl buro burr buru c-bo cbbc cbcc cbce cbcl cbcr cbcu cbec cbee cber cbhl cblb cblc cbol cbre cbrh cbrl ccbc cccb cccc cccl cccu ccee ccel cche cchl cchr cclc ccob ccoc ccrc ccre ccrl ccuc cebu cec- cece ceco ceeb ceec ceel cehl cel- celc cele cell celo ceol ceor ceou cer- cerc cere cerl cero chce chch cheb chec chee cheh chel cher cheu chlc chlr choc choh chol choo chor chou chrb chrc chro chrr chub chul chur clec clee cleo cler cleu clob cloe cloo clor clou clro club clue cluh cobb cobe cobh cobo cobu coce coch coco cocu coel coho col- colb cole coll colo colu coob cooh cool cor- corb corc core corl coro corr coub coue coul cour crbc crbu crcc crce crcr cre- creb crec cree creh creo creu crob croc croe croh crol croo cror crub crue cub- cubb cube cucc cuce cuer culb culc cule cull culo curb cure curl curo curr e-cl ebbc ebbo ebbr ebcc ebel eber eboe ebol eboo ebor ebro ebru ebul ebur ecbc ecbe eccb eccc ecce eccl ecco eche echl echo eco- ecol ecou ecrc ecrl ecrr ecru eeee eele eeoc eerc eero ehcc eheh ehel eher eheu ehle ehlo ehre el-b elbe elbo elbu elcb elce elch elco elec elee eleh eleo eler elle ello ellu elro elue elul eole eolo eore eorl erbb erbe ercc erce erch ereb erec erel erer erhc erhu erle erll erob eroc eroe erol eroo errc erre erro erub eruc eruh erur eubc euch euer euhl eule eur- eurc eure euro hboc hcbc hccb hccc hcch hebb hebe hebo hebr hech heeb heel heer hehe heho hele hell helo helu heor heou herb herc here herl hero herr heru heue heur hhcl hhhh hler hlul hobe hobo hoce hoch hocr hoel hoer hohe hohl hoho hol- holb holc hole holh holl holo holu hooe hool hoor horc hore horl horo horr houe hour hrbl hree hrob hrrc hubb hube hubl hubo huch hucu huel huer huhu hulc hule hull hulu huor hure hurl huro hurr huru huub lbcc lblr lcbc lccc lcce lcer lchc lchr lcor lcrl le-u lebo lebu lece lech leco leel leer lehe lehr lehu lele lell lelo lelu leoc leor leou lerc lere lero leuc leur lhec lhee lhhh lhor llcc lleu lllc llll lloc lloo lob- lobb lobe lobh lobo locc loce loch loco locu loeb loeu lohe loho lohr lohu lole loll lolo loob looc looe lool loor lore loro loue louh loul lour louu lroc lrrc lrrr lube luce luch luer luhe luhu lule lull lulu luoh lure o-eo obbo obec obel ober oble oblu oboe obol obor obre obrh obro obuh ocbc occc oce ocee oche oclc ocre ocrl ocro ocrr ocul ocur oec- oecc oeec oele oere ohbe ohcc ohee ohel oher ohho ohob ohoh ohre olbo olcc ole- oleh oleo oler olle ollo olor olur oobe oocr ooer ooho oolo oooh oooo oore orbb orbe orbo orbu orce orch orco ore- oreb orec oreh orel oreo orer orhe orle orlo orlu oro- oroe oror orro orub oucc ouch ouer oule oulu our- oure ouro ouu- rbbb rbbr rbcl rble rboh rcbc rcbo rccb rccc rchb rcle rebb rebe rebo rebu recc rece rech recr recu reeb reel rehb rehe relb rele rell relo reol reou rere rero reru reue reul reuu rhce rheb rhee rheo rhob rhoc rhoh rhue rlee rleu rob- robb robe robo robu rocc roce roch roco roel roer rohe rohl rohr rohu role roll rolo roob rool roor rorc rore roro roru roub roue rouh roul rrle rrrr rubb rube rubu ruce ruch ruel ruer ruhe ruhh ruhl ruhr rule rull rulo rurc rure ruro ruru ubbe ubbo uber uble ublo uboc ucbc ucel uche ucho ucrc uele uell uhcl uher uhle uhoh uhuh ulbc ulcc ulch ulco uleb ulee uleo ulle ullo ullr ulo- uloc ulul uocc uolc uor- uore urbe urch ure- ureh urho urle uro- urol uroo urre urrh urur uulu uuoc uuuu