-tree b-e-d bbbee bd-re be-er bebed beber bedde bedee beder bedet beebe beede beerd beete bembe bemer bemet berbe berde bered beret berme berre berte betee beter betre bett- bette bmxer bre-x bredd brede bredt breed breem breer breet breme bremm brerd brere brett bretx brmmm brrrr btr-d btr-t d-mer ddddd ddrmm debed deber debet debte dedde dedee deder deede deeme deere dembe demer demet demme demre derbe derde dered derm- derme derre deter detre dette drdre dredd drede dreed drere dxdxd e-dee e-med ebbed ebber ebbet ebert edder eddre edere edmed edred eeeee eerde embed embee ember emdex emede emeer emere emert emmer emmet emtee erbbe erber erdem erdre erede erem- erere erred erte erter etete etext etree etter exede exeem exeme exert exmet exred exter extre mbebe mbere mbret mebbe med-x medee medem meder meede meere meete membe memer memex merde mered merer meret merre merte meted meter metr- metre metrx mette mexer mmdxx mmmmm mrmet mrred mt-td mt-te mt-tm mt-tr mt-tt mtree rebbe reber rebet redbd redde redem reder redex reede reeme reere remed remee remer remet remex rerde rere- reree reret reted retee retem reter retex rette rexer rtext t-rex tbtbt teber tebet teder teeme teerd tembe temed terem teret terex terme terre tert- teter tetex tetr- tette texed texrd texte treed treer treet treme trere trete trett ttttt xbxrx xedre xerem xerte xetex xexex xmmer xterm xtext xtree