-ene bbbb bbeb bbet bebb bebe beeb beej been beer beet bene benj benn bent bere bern berr bert bete bett bner bnet bnrr breb bree bren brer bret brje brnj brrr bten btrt bttb ebbr eben eber eeee eent eete ejer enb- enbn enbr enee ener enne ent- ente entj entr erbb erbe ereb eren erer eret erne erre etbr etee eten eter etne etnr etre ette ettn jebb jebe jeer jeet jene jent jere jert jetb jete jetn jett jner jnet jrbr nbbj nber nebb nebe nebn nebr neeb neen neer neet nene nent nere nerr nert net- netb nete nett nnnn nntn nren nter nttr rbbb rbbr rebb rebe reeb reen reet rene renn rent rere rert rete retr rett rnbr rnnt rrrr rtee tbrb teej teen teer teet tejn tenb tene tenn tent ter- tere terj tern terr tete tetr tett tneb tre- tree tren tret trte trtr ttbb tten tter tttt