-tree b-e-d bbbee bd-re be-er bebed bebel beber bedde bedee bedel beder bedet bedle beebe beede beeld beele beerd beete belde beled belee belet bellb belle berbe berde bered berel beret berle berre berte betee betel beter betle betre bett- bette bledd blede bleed bleer bleet blere blete bredd brede bredt breed breel breer breet brell brerd brere brett brrrr btr-d btr-t bttld dbtel ddddd debed debel deber debet deble debte dedde dedee deder deede deele deere deled delee delle derbe derde dered derre deter detre dette drdre dredd drede dreed dreel drelb drell drere e-dee ebbed ebber ebbet ebble ebell eberl ebert edder eddre edell edere edler edred eeeee eelde eeled eeler eerde elded eldee elder eleet elele ellel eller ellet erbbe erber erdre erede erere erred erte ertel erter etete etree ettel etter ettle lebed lebel leber lebet ledee leder ledet leede leell leere leert lelle lered lerer letbe letre lette rdllr rebbe rebel reber rebet redbd redde redel reder reede reere reled relee relet relte rerde rere- reree reret reted retee retel reter rette tbtbt teber tebet teder teeld teele teell teerd telde tele- teler tell- telle teret terre tert- tetel teter tetle tetr- tette tlell tlett tllbr treed treer treet trele trere trete trett ttttt