-tree d-dot d-rod ddddd dedde dedee deder deede deere deeth deore deoro derde dered dero- derre derro derth deter dethe detho detoo detre dette dhedh dhoot dhote do-do dodoo dodro doerr doeth doodo doore doote dooth dordt dored doree doreh doret dorot dorre dorte dorth doted doter dothe dotoo dotto drdre dredd drede dreed drehe drere drode drood drote drott e-dee e-otd edder eddoe eddre edeo- edere edoor edott edred eeeee eerde ehret eorre erdor erdre erede erere erode erodr eroor erore eroto erred error erte erter erthe etete ether etho- etoro etree etter he-he he-ro hedde heded heder heede heerd heere heete hehte heore herdt herod heroe herre herro herte herth herto heter hethe hette hetto hheth hhhhh hhtdd ho-ho ho-oh hodde hoder hodhr hodod hoedd hohoe hohot hooed hooer hoord hoore hoort horde hordt horhe horod horre horro hortd horth horto hoted hothe hothr hotot hotte hotto hrere hthrt htree odder oddhe odeto odore oerth oh-oh oheed ohrot ohthe oo-er oohed ooher ooooh ooooo oothe order ordet ordre ordro oredo oreed oreo- orere orero orodo oroer orret orter ortet orth- orthe ortho ortoo otere otero other othre ototo otter redde reder redor redot reede reere reerh reeth rehed reher rehet rehoe reord rerde rere- reree reret reted retee reter rethe retro rette retto rhede rheo- rhett rhod- rhode rhodo rhoeo ro-ro rodde roded rodeo roder rodor roero rohde rohod roode rooer roore roote rorer roted roter rothe rotho roto- rotor rotot rotte rotto teder teerd teeth tehee teodo teret teror terre terro tert- teter tethe tetr- tetro tette thede theed theer theo- theod theor ther- there thero thete theth thode thore thoro thorr thort thoth thre- thred three threo thret throd throe throo throt to-do to-ho toder todor toerr toeto toher tohoe tohot toode tooed toord toore tooth torde tored toreo toret torht torre torro torte torto toted toter tothe toto- totoe totoo totte treed treer treet trere trete trett trhde trhdr trode troee trood troth trott ttttt