dddd ddre dedd dede dedu deed deef deer deet defe deff deft dehu der- dere derf derr dete deth detr deue deur deut dfdt dfer dfrf dftr dhed dhee dher dhur dred dree dref dreh dret drue drut druu dted dthd dudd dude dudu duer duet duff dufu duhe duhr duhu dure durt duru dute duur duut edde ede- edeh eder edfu edru edur eede eedu eeee eefe eete eeth eetu efet eft- eftu ehdd eheh eher eheu ehre ehte ehud erde erdf ered erer eret erft erhu erre erth ertu eruh erur etee eter etfe eth- ethe etre ette ettu eude euer eur- eure eurt euth fede feed feer feet fefe feff fehd fehr fehu ferd fere ferr fert feru fete feth fetr fett fetu feud ffee ffff ffrr fftf fred free fret frue fter fudd fude fuet fuff fufu fur- fure furr furt fute futu hdtt hedd hede heed heef heer heet hefd hefe heft hehe herd here herr hert heru hete heth hett hetu heue heur hhhh hree hrte hrud htet httr hudd hude hudu hued huer huet hufe huff hufu huhu hurd hure hurr hurt huru hute huth hutt hutu rder redd rede redh redr redu reed reef reet refd refe reff refr reft refu rehe reht rerd rere rert reru retd rete reth retr rett reue reuf reut reuu rfef rhee rhet rhue rred rrrr rtdt rtee rudd rude rued ruer ruet rufe ruff ruft ruhe ruhh ruhr rurd rure ruru rute ruth rutt rutu ruud tdff tedd tede teed teef teer teet teff teft tehr ter- tere terf terr teru tete teth tetr tett tetu teut thdr the- thed thee thef ther thet theu thre thru thtr thud thue thur tre- tred tree tref tret treu trfd trfr trte trtr trud true trut truu tter ttff tttt tude tudu tuer tuet tufe tuff tuft tufu tuht tuhu turd ture turf turr turt turu tute tutt tutu uder udet ufer uffe uh-d uhde uher uhuh urde urdu ure- ured ureh uret urfe urff urft urre urrh urte urth urur urut uter uthe uttu uutf uuuu