-hou bbbb bbch bbcm bbeb bbrc bcbc bccc bccm bcec bcer bche bcor bcru bcuc bebb bebe bebo bech becu beeb beem beer behm behr beme bemu beo- beor berc bere berm bero berr beru beur bhcc bher bhor bhur bhuu bmce bmoc bobb bobe bobo bobu boce boch bocm boco bocu boec boee boeo boer bohm boho bohr bohu bomb bome bomu boob booc booe booh boom boor bor- bore borh borm boro borr boru boue bouh boum bour brcb brce breb brec bree brem breo brer brmc brob broc broe broh brom broo bror brou brrm brrr bruc brue bruh brum bubb bube bubo bubu bucc buce buch buco bucu buem buer bueu buhe buho buhr bum- bumb bur- burb bure burh burm buro burr buru c-bo cbbc cbcc cbce cbcm cbcr cbcu cbec cbee cber cbme cbre cbrh cbrm ccbc cccb cccc cccm cccu ccee cche cchr ccmb ccmc ccmm ccob ccoc ccom ccrc ccre ccuc cebu cec- cece cecm ceco ceeb ceec ceem cemb ceme cemm cemr cemu ceor ceou cer- cerc cere cero chce chch chcm cheb chec chee cheh chem cher cheu chmb chmc chmo choc choh choo chor chou chrb chrc chro chrr chub chum chur cmbc cmcc cmec cmhc cmmb cmmc cmoc cmrr cobb cobe cobh cobo cobu coce coch coco cocu coho com- comb comc come comm como comr comu coob cooh coom cor- corb corc core corm coro corr coub coue cour crbc crbu crcc crce crcr cre- creb crec cree creh crem creo creu crmb crmo crob croc croe croh crom croo cror crub crue crum cub- cubb cube cucc cuce cucm cuer cum- cume curb cure curo curr ebbc ebbo ebbr ebcc eber eboe eboo ebor ebro ebru ebur ecbc ecbe eccb eccc ecce eccm ecco ecem eche echo eco- ecou ecrc ecrm ecrr ecru eeee eemo eeoc eerc eero ehcc eheh eher eheu ehre embe embo embr emcc emco emer emeu emhc emme emmu emoh emor emre eore erbb erbe ercc erce erch ereb erec erem erer erhc erhu ermc erme ermo erob eroc eroe eroo errc erre erro erub eruc eruh erum erur eubc euch euer eumc eur- eurc eure euro hboc hcbc hccb hccc hcch hcmc hcmm hebb hebe hebo hebr hech heeb heem heer hehe heho hem- heme hemo hemu heom heor heou herb herc here herm hero herr heru heue heur hhhh hmhb hmmm hobe hobo hoce hoch hocr hoer hohe hohm hoho hom- home homo homr homu hooe hoom hoor horc hore horo horr houe hour hree hrob hrrc hubb hube hubo huch hucu huer huhu hume humh humm humo huor hure huro hurr huru huub mbou mcbc mccc mcmc mcrc mebe mebo mec- mecc mece mech meco mecr meem meer mehe mehr mehu memc meme memo memr memu meoc meor meou mer- merb merc mere merm mero meru meum mhem mhmm mhmr mhor mmcc mmcm mmhm mmmc mmmh mmmm mmor mmrc mobb mobe mobo moch moco mohe mohm moho mohr mohu mome momo momu moob mooc mooe moor morb more moro moru moue mour mr-c mrbb mrbm mrcb mrcc mrce mreb mree mrmc mrrc mube mubo muc- mucc muce much mucu muee muhr muhu mume mumm mumo mumu murc mure muro murr muru o-eo obbo obec ober oboe obor obre obrh obro obuh ocbc occc oce ocee oche ocom ocre ocro ocrr ocum ocur oec- oecc oeec oeme oere oerm ohbe ohcc ohee oher ohho ohme ohob ohoh ohre ohum ombe ombo ombu omee omeo omer omo- omoe omoo omor omre omro omuo oobe oocr ooer ooho oome oooh oooo oore orbb orbe orbo orbu orce orch orco ore- oreb orec oreh orem oreo orer orhe orme ormo oro- oroe orom oror orro orub orum oucc ouch ouer oume our- oure ouro ouu- rbbb rbbr rboh rcbc rcbo rccb rccc rchb rchm rebb rebe rebo rebu recc rece rech recm recr recu reeb reem rehb rehe rehm reme remo reou rere rero reru reue reuu rhce rhcm rheb rhee rhem rheo rhob rhoc rhoh rhue rhum rob- robb robe robo robu rocc roce roch roco roer rohe rohm rohr rohu romb rome romm romo roob room roor rorc rore roro roru roub roue rouh roum rrmc rrrr rrum rubb rube rubu ruce ruch ruer ruhe ruhh ruhm ruhr rumb rume rumm rumo rurc rure ruro ruru ubbe ubbo uber uboc ucbc uche ucho ucmc ucom ucrc uher uhoh uhuh umb- umbe umbo umec umer ummo umoe umor uocc uomo uor- uore urbe urch ure- ureh urho uro- urom uroo urre urrh urum urur uuoc uuuu