-ene dddd ddre dedd dede dedu deed deen deer dene denn denu der- dere dern derr deue deur dner dqed dred dree dren drue druu dudd dude dudu duer dune dunn duqu dure durn duru duur edde ede- eden eder edrn edru edun edur eede eedu eeee eend end- ende endu ened enee ener enne ennu enue enur eqed equ- eque erde ered eren erer erne erre erur eude euer eur- eure ndde nder ndre nedd nede nedu need neen neer nend nene nenu nerd nere nerr neru neue neun neur neuu nnnn nren nrrd nudd nude nuee nuer nune nunn nurd nure nurn nurr nuru qene qere qerq qqqq qren qued quee quen quer qunu qurd quu- rder redd rede redq redr redu reed reen rend rene renn renu reqd rerd rere reru reue reuu rred rrrr rrun rudd rude rued ruen ruer rund rune runn rurd rure ruru ruud ruun uden uder udun uend unde uned unee unen uner unne urde urdu ure- ured urne urre urun uruq urur uuen uuuu