-er b-u bbb bbc bbe bbm bbo bbr bbu bcb bcc bce bcm bco bcr bcu be- beb bec bee bem beo ber beu bmb bmc bme bmm bmo bmr bmu bob boc boe bom boo bor bou brb bre brm bro brr bru bub buc bue bum buo bur buu c-- cbb cbc cbe cbm cbo cbr cbu ccb ccc cce ccm cco ccr ccu ce- ceb cec cee cem ceo cer ceu cmb cmc cme cmm cmo cmr cmu co- cob coc coe com coo cor cou crb crc cre crm cro crr cru cub cuc cue cum cuo cur cuu ebb ebc ebe ebm ebo ebr ebu ec- ecb ecc ece ecm eco ecr ecu eeb eec eee eem eeo eer em- emb emc eme emm emo emr emu eo- eob eoc eoe eom eoo eor eou erb erc ere erm ero err eru eu- eub euc eue eur m-o m-r mbb mbc mbe mbm mbo mbr mbu mc- mcb mcc mce mcm mco mcr mcu meb mec mee mem meo mer meu mmb mmc mme mmm mmo mmr mmu mob moc moe mom moo mor mou mrb mrc mre mrm mro mrr mru mub muc mue mum mur muu ob- obb obc obe obm obo obr obu oc- ocb occ ocm oco ocr ocu oeb oec oee oem oeo oer om- omb omc ome omm omo omr omu oo- oob ooc oom ooo oor or- orb orc ore orm oro orr oru ou- ouc oue oum ouo our rbb rbc rbe rbm rbo rbr rbu rcb rcc rce rcm rco rcr rcu re- reb rec ree rem reo rer reu rmb rmc rme rmm rmo rmr rob roc roe rom roo ror rou rrb rrc rrm rrr rru rub ruc rue rum ruo rur ruu ubb ubc ube ubo ubr ubu ucb ucc uce ucm uco ucr ucu ueb uec uee uem uer um- umb umc ume umm umo umr umu uob uoc uoe uom uoo uor ur- urb urc ure urm uro urr uru uuc uue uum uur uuu

bbbb bbcm bbeb bbrc bcbc bccc bccm bcec bcer bcor bcru bcuc bebb bebe bebo becu beeb beem beer beme bemu beo- beor berc bere berm bero berr beru beur bmce bmoc bobb bobe bobo bobu boce bocm boco bocu boec boee boeo boer bomb bome bomu boob booc booe boom boor bor- bore borm boro borr boru boue boum bour brcb brce breb brec bree brem breo brer brmc brob broc broe brom broo bror brou brrm brrr bruc brue brum bubb bube bubo bubu bucc buce buco bucu buem buer bueu bum- bumb bur- burb bure burm buro burr buru c-bo cbbc cbcc cbce cbcm cbcr cbcu cbec cbee cber cbme cbre cbrm ccbc cccb cccc cccm cccu ccee 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 cmbc cmcc cmec cmmb cmmc cmoc cmrr cobb cobe cobo cobu coce coco cocu com- comb comc come comm como comr comu coob coom cor- corb corc core corm coro corr coub coue cour crbc crbu crcc crce crcr cre- creb crec cree crem creo creu crmb crmo crob croc croe 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 eco- ecou ecrc ecrm ecrr ecru eeee eemo eeoc eerc eero embe embo embr emcc emco emer emeu emme emmu emor emre eore erbb erbe ercc erce ereb erec erem erer ermc erme ermo erob eroc eroe eroo errc erre erro erub eruc erum erur eubc euer eumc eur- eurc eure euro mbou mcbc mccc mcmc mcrc mebe mebo mec- mecc mece meco mecr meem meer memc meme memo memr memu meoc meor meou mer- merb merc mere merm mero meru meum mmcc mmcm mmmc mmmm mmor mmrc mobb mobe mobo moco 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 mucu muee mume mumm mumo mumu murc mure muro murr muru o-eo obbo obec ober oboe obor obre obro ocbc occc oce ocee ocom ocre ocro ocrr ocum ocur oec- oecc oeec oeme oere oerm ombe ombo ombu omee omeo omer omo- omoe omoo omor omre omro omuo oobe oocr ooer oome oooo oore orbb orbe orbo orbu orce orco ore- oreb orec orem oreo orer orme ormo oro- oroe orom oror orro orub orum oucc ouer oume our- oure ouro ouu- rbbb rbbr rcbc rcbo rccb rccc rebb rebe rebo rebu recc rece recm recr recu reeb reem reme remo reou rere rero reru reue reuu rob- robb robe robo robu rocc roce roco roer romb rome romm romo roob room roor rorc rore roro roru roub roue roum rrmc rrrr rrum rubb rube rubu ruce ruer rumb rume rumm rumo rurc rure ruro ruru ubbe ubbo uber uboc ucbc ucmc ucom ucrc umb- umbe umbo umec umer ummo umoe umor uocc uomo uor- uore urbe ure- uro- urom uroo urre urum urur uuoc uuuu

bbbee be-er be-ro beber becco becue becum beebe bembe bembo bemco bemer beour berbe bercu berec berme bermo berob beroe berom beror berre berru berum beuer beure bo-bo boboc bobr bobre bocce bocom bocor boece boeme boero boeur bombe bombo bomer bomme booce booco booer boomb boore booru borbo borce borec boree borer bormo boro- borom boroo borou borre borro borum bouce bouee bouer boure brebu brece breem breer breme bremm bremo breo- breoc brere breu- brmmm brobo broce broer brom- brome bromo broom broue brrrr bruce bruer brume brumm bubbe buber bucco buceo bucum bucur bumbo bumbu bumme burcu buroo burro burru buruc c-cor ccccc cebec ceber ceco- cecum ceere cemec cemmo cemre ceoce ceoor cerbu cerc- cerce cerco cerec cerer