-ene bbbb bbeb bbng bbpr bbrg bebb bebe beeb beeg been beep beer begg bene beng benn bere berg bern berr bneg bner bnpp bnrr breb bree breg bren brep brer brrr ebbr eben eber eeee eeng eerg egbe egee eger eggb egge eggp egne egpb egpe egpn egre enb- enbn enbr enee eneg ener enge engg engr enne enp- epee epen eper eppp eprb eprp erbb erbe ereb eren erer erg- ergg erne erpe erre gebe geen geep geer gege gegg gen- gene geng genn gepe gerb gere gern gggg ggrn gnrr gper gpgp gprp grbr greb gree greg gren grep grrr nber nbpp nebb nebe nebn nebr neeb neen neep neer nege negp nene neng nepe nepr nere nerr ngen nger nngn nnnn nnpr nren nrpn peen peep peer pegg pen- pene peng penn pepe per- pere perg pern perp perr pger pnpp ppen pper pppn pppp pre- preb pree preg pren prep prnp rbbb rbbr rebb rebe reeb reen reep rege regn regr rene reng renn repe repp repr rere rerg rgbe rnbr rppn rrrr