bbbb bbeb bblb bcbc bccc bccl bcec bcuc bebb bebe becu beeb beel bele bell belu belz beze bezu blcu bleb blee bleu blub blue bubb bube bubu bucc buce bucu bucz buel bueu bulb bule bull bulu bulz buuz buze buzz bzzz cbbc cbcc cbce cbcl cbcu cbec cbee cblb cblc ccbc cccb cccc cccl cccu ccee ccel cclc ccuc cebu cec- cece ceeb ceec ceel cel- celc cele cell ceze clec clee cleu club clue cub- cubb cube cucc cuce culb culc cule cull e-cl ebbc ebcc ebel ebul ecbc ecbe eccb eccc ecce eccl eeee eele eeze el-b elbe elbu elcb elce elec elee elle ellu elue elul elze eubc eule ezel ezuz lbcc lcbc lccc lcce le-u lebu lece leel lele lell lelu leuc leze llcc lleu lllc llll lube luce lule lull lulu lulz luze ubbe uble ucbc ucel uele uell ulbc ulcc uleb ulee ulez ulle ulul uulu uuuu uzbl uzeb uzel zebe zebu zeel zele zell zeze zubu zuce zule zull zulu zulz zuul zuzu zzzz