-tree b-e-d bbbee bd-re bdoor bdort be-er be-ro bebdo bebed beber bebod bebot bedde bedee beder bedet bedot beebe beede beerd beete beode beord beote berbe berde bered beret berob beroe beror berre berte berto betee beter betoo betor betre bett- bette betto bo-bo bobet bobr bobre bodd- boded boder bodoe bodor boedo boero boode booed booer boord boore boort borbo borde bordo bored boree borer boret boro- borod boroo borot borre borro botet botro botte bredd brede bredt breed breer breet breo- brerd brere breto brett brobo brodd brode brodo broer brood broto brrrr btr-d btr-t d-dot d-rod ddddd ddebo debed deber debet debot debro debte dedde dedee deder deede deere deore deoro derbe derde dered dero- derob derre derro deter detoo detre dette do-do dobee dober dobre dobro dodoo dodro doerr doodo doore doote dordt dored doree doret dorot dorre dorte doted doter dotoo dotto drbob drdre dredd drede dreed drere drobe drobo drode drood drote drott e-dee e-otd ebbed ebber ebbet ebert edder eddoe eddre edeo- edere edoor edott edred eeeee eerde eorre erbbe erber erdor erdre erede erere erode erodr eroor erore eroto erred error erte erter etete etoro etree etter o-r-b obbet obedt obert obete obodo oboro obote obreb odder odebo odeto odore oo-er ooooo orbed orbot order ordet ordre ordro oredo oreed oreo- orere orero orobe orobo orodo oroer orret orter ortet ortoo otere otero ototo otter rebbe reber rebet redbd redde reder redor redot reede reere reord rerde rere- reree reret rerob reted retee reter retro rette retto ro-ro robbe robbo robed rober robo- robor robot robrt robte rodbo rodde roded rodeo roder rodor roero roode rooer roore roote rorer roteb roted roter roto- rotor rotot rotte rotto tbtbt teber tebet teder teerd teodo teret teror terre terro tert- teter tetr- tetro tette to-be to-do tobbe tobed tober tobet tobor tobot tobre toder todor toerr toeto toobe toode tooed toord toore torbe torde tored toreo toret torob torre torro torte torto toted toter toto- totoe totoo totte treed treer treet trere trete trett trode troee trood trott ttttt