bbbb bbdd bbeb bblb bcbc bccc bccl bcde bcec bcuc bdbc bddc bdle bebb bebe becu bede bedl bedu beeb beed beel beld bele bell belu blcu bldc bleb bled blee bleu blub blud blue bubb bube bubu bucc buce bucu budb budd bude budl budu buel bueu bulb buld bule bull bulu c-cd cbbc cbcc cbce cbcl cbcu cbdb cbdc cbec cbee cblb cblc ccbc cccb cccc cccl cccu ccdc cced ccee ccel cclc ccuc cd-e cddb cddl cdec cebu cec- cece cedd cede cedu ceeb ceec ceel cel- celc cele cell clcd cldc clec cled clee cleu club clud clue cub- cubb cube cucc cuce cude cued culb culc culd cule cull dbcc dcbc dccb dccc dccl dccu dcdb dddd ddlc ddub debe debu dec- decc decd dece decl dedd dede dedu deeb deed deel deld dele dell deue deul dlbd dub- dubb dubc dube dubu duce dudd dude dudu duel dulc dule dull dulu duul e-cl ebbc ebcc ebed ebel ebul ecbc ecbe eccb eccc ecce eccl ecdc ecdl eced eddc edde ede- edel edle educ eede eedu eeee eele el-b elbe elbu elcb elce elde elec eled elee elle ellu elue elul eubc eucd eude eule lbcc lcbc lccc lcce lcdd le-u lebd lebu lece lede leed leel lele lell lelu leuc leud llcc lldb lldc lleu lllc llll llud lube luce ludd lude lued lule lull lulu ubbe uble ubud ucbc ucdc ucdd ucel udbc udel uele uell ulbc ulcc ulde uleb ulee ulle ulul uulu uuuu