bbbb bbeb bblb bcbc bccc bccl bcec bcuc bcvo bebb bebe bebo becu beeb beel bele bell belo belu beo- bevo blcu bleb blee bleo bleu blob bloc bloo blou blub blue bobb bobe bobo bobu boce boco bocu boec boee boel boeo bole boll bolo bolu boob booc booe bool boue boul bove bovo bubb bube bubo bubu bucc buce buco bucu buel bueu bulb bule bull bulu buol buve c-bo cbbc cbcc cbce cbcl cbcu cbec cbee cblb cblc cbol cbvb cbve ccbc cccb cccc cccl cccu cccv ccee ccel cclc cclv ccob ccoc ccuc ccvo cebu cec- cece ceco ceeb ceec ceel cel- celc cele cell celo ceol ceou cevo clec clee cleo cleu clob cloe cloo clou club clue cobb cobe cobo cobu coce coco cocu coel col- colb cole coll colo colu coob cool coub coue coul cove covo cub- cubb cube cucc cuce culb culc cule cull culo cuve cvcc e-cl ebbc ebbo ebcc ebel eboe ebol eboo ebul ecbc ecbe eccb eccc ecce eccl ecco eco- ecol ecou eeee eele eelv eeoc el-b elbe elbo elbu elcb elce elco elec elee eleo elev elle ello ellu elue elul elve elvo eole eolo eubc eule evel evoe evol evoo lbcc lcbc lccc lcce le-u lebo lebu lece leco leel lele lell lelo lelu leoc leou leov leuc lev- levc leve levo llcc lleu lllc llll lloc lloo lo-v lob- lobb lobe lobo locc loce loco locu loeb loeu lole loll lolo loob looc looe lool loue loul louu love lovo lube luce lule lull lulu luve lvcc lvov o-eo obbo obec obel oble oblu oboe obol ocbc occc oce ocee oclc ocul oec- oecc oeec oele olbo olcc ole- oleo olev olle ollo olov oobe oolo oooo oucc oule oulu ouu- ovee ovo- ovol ovoo ubbe ubbo uble ublo uboc ucbc ucel uele uell ulbc ulcc ulco uleb ulee uleo ulle ullo ulo- uloc ulul uocc uolc uovo uulu uuoc uuuu uv-b uv-c uvel uvvu vbcc vecc veel vel- vele vell velo velu veol veve vevo vlcc vloc voce voel voeu volc vole voll volo vooc vool voue voul vuco vuel vull vvob vvvv