bbbb bbcm bbeb bbrc bcbc bccc bccm bcec bcer bcor bebb bebe bebo beeb beem beer beme beo- beor berc bere berm bero berr bmce bmoc bobb bobe bobo boce bocm boco boec boee boeo boer bomb bome boob booc booe boom boor bor- bore borm boro borr brcb brce breb brec bree brem breo brer brmc brob broc broe brom broo bror brrm brrr c-bo cbbc cbcc cbce cbcm cbcr cbec cbee cber cbme cbre cbrm ccbc cccb cccc cccm ccee ccmb ccmc ccmm ccob ccoc ccom ccrc ccre cec- cece cecm ceco ceeb ceec ceem cemb ceme cemm cemr ceor cer- cerc cere cero cmbc cmcc cmec cmmb cmmc cmoc cmrr cobb cobe cobo coce coco com- comb comc come comm como comr coob coom cor- corb corc core corm coro corr crbc crcc crce crcr cre- creb crec cree crem creo crmb crmo crob croc croe crom croo cror ebbc ebbo ebbr ebcc eber eboe eboo ebor ebro ecbc ecbe eccb eccc ecce eccm ecco ecem eco- ecrc ecrm ecrr eeee eemo eeoc eerc eero embe embo embr emcc emco emer emme emor emre eore erbb erbe ercc erce ereb erec erem erer ermc erme ermo erob eroc eroe eroo errc erre erro mcbc mccc mcmc mcrc mebe mebo mec- mecc mece meco mecr meem meer memc meme memo memr meoc meor mer- merb merc mere merm mero mmcc mmcm mmmc mmmm mmor mmrc mobb mobe mobo moco mome momo moob mooc mooe moor morb more moro mr-c mrbb mrbm mrcb mrcc mrce mreb mree mrmc mrrc o-eo obbo obec ober oboe obor obre obro ocbc occc oce ocee ocom ocre ocro ocrr oec- oecc oeec oeme oere oerm ombe ombo omee omeo omer omo- omoe omoo omor omre omro oobe oocr ooer oome oooo oore orbb orbe orbo orce orco ore- oreb orec orem oreo orer orme ormo oro- oroe orom oror orro rbbb rbbr rcbc rcbo rccb rccc rebb rebe rebo recc rece recm recr reeb reem reme remo rere rero rob- robb robe robo rocc roce roco roer romb rome romm romo roob room roor rorc rore roro rrmc rrrr