bbbb bbeb bblb bbrc bbrg bcbc bcbg bccc bccl bcec bcer bcru bcuc bebb bebe becu beeb beeg beel beer begg begu bele belg bell belu berc bere berg berr beru beur blcu bleb blee bleg bleu blrc blrg blub blue blur brcb brce breb brec bree breg brel brer brrr bruc brue brug bubb bube bubu bucc buce bucu buel buer bueu buge bugg bulb bule bulg bull bulu bur- burb bure burg burl burr buru cbbc cbcc cbce cbcl cbcr cbcu cbec cbee cber cbgb cblb cblc cbre cbrl ccbc cccb cccc cccl cccu ccee ccel ccgc cclc cclg ccrc ccre ccrg ccrl ccuc cebu cec- cece ceeb ceec ceel cege cel- celc cele cell cer- cerc cere cerl cgcc cgcg cgel cger clec clee cleg cler cleu club clue crbc crbu crcc crce crcr cre- creb crec cree creg creu crub crue crug cub- cubb cube cucc cuce cuer culb culc cule cull curb cure curl curr e-cl ebbc ebbr ebcc ebel eber ebru ebul ebur ecbc ecbe eccb eccc ecce eccl ecrc ecrl ecrr ecru eeee eele eerc eerg egbe egbu egcc egcg egcr egec egee egel eger eggb egge eglc egle eglu egre el-b elbe elbu elcb elce elec elee eler elgg elle ellu elue elul erbb erbe ercc erce ereb erec erel erer erg- ergg erle erll errc erre erub eruc erur eubc euer euge eule eur- eurc eure gc-c gcbc gccc gclc gcrg gebe gece geel geer gege gegg gegl gelb gele gelg gell gelu gerb gere gerl geru geue geul ggcl gggg glbc glcc glce gleb glee gleg gleu glge glrb glub glue glug glur grbr grcc grce greb grec gree greg greu grrl grrr grub grue grug grur gubb gubu guel guer gugb guge gugg gugu gulb gule gull gulu gurb gure gurg gurl gurr guru lbcc lblr lbug lcbc lccc lcce lcer lcrg lcrl le-u lebu lece leel leer lege legg lele lell lelu lerc lere leuc leur lgbu lger llcc lleu llgc lllc llll lrgb lrrc lrrr lube luce lueg luer luge lugg lugu lule lull lulu lure lurg rbbb rbbr rbcl rble rcbc rccb rccc rcgc rcle rcrg rebb rebe rebu recc rece recr recu reeb reel rege regl regr regu relb rele rell rere rerg reru reue reul reuu rgbe rlcg rlee rleu rlug rrle rrrr rubb rube rubu ruce ruel ruer ruge rugg rule rull rurc rure ruru ubbe uber uble ucbc ucel ucrc uele uell ugcc ugcg ugur uguu ulbc ulcc uleb ulee ulle ullr ulul urbe ure- urge urgu urle urre urur uulu uuuu