-ene bbbb bbbs bbeb bebb bebe beeb beek been beer bees beke beks bene benk benn bens bere berk bern berr bers bes- bese besk bess bner bnrr bnss breb bree brek bren brer bres brkb brns brrr brrs brsb brsr bseb bsee bser bses bsns bsse ebbr ebbs eben eber ebes eeee eees eeke eeks eens eers eese eesk ekeb ekek eken eker ekes ekne enb- enbn enbr enee ener enes enke enkr enne enns enrs ense erbb erbe ereb eren erer eres erke erks erne erns erre errs erse esbs esee esek esen eser eses eske esks esne esse kbbb kbbe kbbk kbbr kbbs kbeb kbee kbek kben kber kbes kbkb kbkk kbkr kbnn kbnr kbrb kbre kbrk kbrn kbsb kbsk kbsn kbsr kbss kebb kebe kebn kebr keek keen keer kees kekb keke keks ken- kene kenk kenn kenr kens ker- kerb kere kerk kern kerr kers kesb kesk kesn kesr kess kkbb kkbe kkbn kkbr kkbs kken kkkk kknb kkne kknn kkns kkrb kkre kkrk kkrn kkrr kkrs kkse kksn kksr kkss knbb knbe knbn knbr kneb knee knek knen knes knkk knnb knnk knnr knns knrb knrk knrs knsb knse knsk knsn knsr knss krbb krbe krbk krbr kreb kree krek kren kres krke krkk krkn krkr krks krnb krne krnk krnn krrb krre krrk krrn krrr krrs krse krsk krsn krsr krss ksbn ksbr ksbs ksee ksek ksen kser kskb kske kskk kskn kskr ksks ksnb ksnk ksnn ksnr ksns ksrb ksrn ksrr ksrs ksse kssn kssr ksss nber nebb nebe nebn nebr nebs neeb neen neer nees neke nene nens nere nerk nerr ners nesb nese nesn nesr ness nnes nnnn nnss nren nseb nser nskk nsnr nssb nsse nssr nsss rbbb rbbr rbbs rbss rebb rebe rebk rebs reeb reek reen rees reke reks rene renk renn rens rere rers rese resn ress rkss rnbr rrrr rsee rsnn rsnr rsre sbbs sber sbrk sbse se-e se-k se-n se-s sebe sebs seeb seek seen seer sees seke sekk sene senn senr sens serb sere serk sern serr sers sese sess skee sken sker skes skn- skss sneb snee sner snes snns snrk snrs sreb sres srnn ssbn ssbr ssee sses ssns ssrs sssb ssss