bbbb bblb bbrc bcbc bccc bccl bcnu bcru bcuc blcu blrc blub blur bly- blyn bnrr brcb brrr bruc brun bry- bryn bubb bubu bucc bucu bulb bull bulu bunb bunn bunu bur- burb burl burn burr buru bury buyl buyu bync byrn byul byun cbbc cbcc cbcl cbcn cbcr cbcu cblb cblc cbln cbrl cbrn cbry ccbc ccbn cccb cccc cccl cccu cclc ccnb ccnc ccnr ccnu ccny ccrc ccrl ccuc club clun cly- cnbc cnbl cnrc cnrr crbc crbu crcc crcr crub crun cry- cryb cryn cub- cubb cuby cucc cucn culb culc cull cuny curb curl curn curr cury cuy- cuyl cuyr cybb cybc cyc- cycb cycc cycl cyl- cylc cyll cyn- cyrl cyul cyun cyy- cyyc cyyn lbcc lblr lcbc lccc lcrl llcc lllc llll llyn llyr lncr lrrc lrrr lrry luby lucy lull lulu lunn luny lury lyc- lyly lync lynn lyun lyyn nbbc nbcc ncbc nccc nccn nccr nccu nclc ncln nclr ncnc ncrc nlcc nlrb nnnn nrlb nrrc nrrl nubc nubl nuby nucu null nunc nunn nuny nurc nurl nurn nurr nuru nycc nycy nyll nyny nyrb nyul rbbb rbbr rbcl rcbc rccb rccc rcnl rcnr rcyc rnbr rrrr rrun rubb rubu ruby rull ruly runc runn runy rurc ruru ruun ruyl rynn ryun ubly ucbc ucrc ulbc ulcc ullr ully ulul uncc uncl urcy urry urun urur uryn uulu uuuu uuyn ybnl ybry yccc yrly yrun yryn yubu yulu yuny yurn yury yuyu yyyy