-ene -yne bbbb bbbs bbeb bcbc bcbs bccc bccs bcec bces bcsc bcsn bcss bebb bebe beby becs beeb been bees beey bene benn bens bes- bese bess besy beye beyn beys bnss bscs bseb bsec bsee bses bsns bssc bsse byce byen byes bync bysb byse byss bysy cbbc cbbs cbcc cbce cbcn cbcs cbec cbee cbsc cbse cbsn ccbc ccbn cccb cccc cccs ccee ccnb ccnc ccne ccns ccny ccsn ccss cebs cec- cece cecs ceeb ceec cees cen- cene cens ceny cesc cese cess ceys cnbc cnes cnss cscb cscc csce cscs csec csee csne csny csse csys cybb cybc cyc- cycb cycc cycs cyen cyn- cyne cyse cyy- cyyc cyyn ebbc ebbs ebby ebcc eben ebes ecbc ecbe eccb eccc ecce eces ecne ecsc ecse ecss eeby eecs eeee eees eens eeny eese eesy enb- enbn enby ence encs ency enee enes eney ennc enne enns enny ense enye enys esbs escb esce escs esee esen eses esne esse essy esyn eyeb eyec eyen eyes eyey eyne eyse nbbc nbcc nbcs ncbc ncbs nccc nccn nccs ncec ncee ncen nces ncnc ncsc ncse ncss ncsy nebb nebe nebn nebs necc nece necs necy neeb neen nees nene nens nesb nesc nese nesn ness neye neyn neys nnes nnnn nnss nscc nscs nseb nsec nssb nssc nsse nsss nycc nyce nycy nyen nyes nyne nyny nysc nyse nyss sbbs sbcc sbcs sbse sccc scce sccs sccy scec scee scey scsc scsn scye scyn se-c se-e se-n se-s se-y sebe sebs seby sec- secc sece secn secs secy seeb seec seen sees seey sene senn sens seny sesc sese sess seye seyn seys sncc sneb snee snes snns snsy snye snys ssbn ssby sscc ssce sscs ssec ssee sses ssns sssb sssc ssss syce syen syes syn- sync syne syns syny syse syss ybbs yben yccc ycee ycsb yeen yees yenc yene yens yess yeye ynce ynes ynne ysby ysee ysen yses ysse ysyb yyyy