-ene bbbb bbch bbeb bblb bcbc bccc bccl bcec bche bcnu bcuc bebb bebe bech becu beeb beel been behn bele bell belu bene benn benu bhcc bhel bhuu blcu bleb blee bleh bleu blub blue bubb bube bubu bucc buce buch bucu buel buen bueu buhe buhl bulb bule bull bulu bunb bune bunn bunu cbbc cbcc cbce cbcl cbcn cbcu cbec cbee cbhl cblb cblc cbln ccbc ccbn cccb cccc cccl cccu ccee ccel cche cchl cclc ccnb ccnc ccne ccnu ccuc cebu cec- cece ceeb ceec ceel cehl cel- celc cele cell cen- cene chce chch cheb chec chee cheh chel chen cheu chlc chln chnb chnc chnl chub chul chun clec clee cleu club clue cluh clun cnbc cnbl cnel cub- cubb cube cucc cuce cucn culb culc cule cull cune e-cl ebbc ebcc ebel eben ebul ecbc ecbe eccb eccc ecce eccl eche echl ecne eeee eele ehcc eheh ehel ehen eheu ehle el-b elbe elbu elcb elce elch elec elee eleh elen elle ellu elne elue elul enb- enbn ence ench encl enee enel ennc enne ennu enue eubc euch euhl eule hcbc hccb hccc hcch hebb hebe hech heeb heel hehe hehn hele hell helu hene henh henn henu heue heun hhcl hhhh hlul hnce hubb hube hubl huch hucu huel huhn huhu hulc hule hull hulu hunc hune hunh huub lbcc lcbc lccc lcce lchc le-u lebu lece lech leel leen lehe lehu lele lell lelu lene lenn leuc leun lhec lhee lhhh lhun llcc lleu lllc llll lube luce luch luhe luhu lule lull lulu lune lunn nbbc nbcc ncbc nccc nccn nccu ncec ncee ncel ncen nchc nclc ncln ncnc ncue nebb nebe nebn nebu necc nece nech neeb neel neen nehe nehu nelc nele nell nene nenh nenu neuc neue neun neuu nhcc nheb nhhl nhnn nlcc nlec nnnn nubc nube nubl nuce nuch nucu nuee nuel nule null nunc nune nunn ubbe uble ucbc ucel uche uele uell uhcl uhle uhuh ulbc ulcc ulch uleb ulee ulen ulle ulne ulul unbe uncc unce unch uncl uneb unec unee unen unle unne uuen uulu uuuu