dddd dedd dede dedu deed deef deel defe deff deld dele delf dell deue deul deux dex- dexe dlux dudd dude dudu duel duff dufu dule dull dulu duul dxed dxef dxel dxfe dxfx dxll dxue dxxl dxxx edde ede- edel edex edfl edfu edle edxl eede eedu eeee eefe eefl eele elde eled elee elef elex elfe elle ellu elue elul eude eule exed exel exul fede feed feel fefe feff feld fele felf fell feud feux ffee ffff fled flee flex flud flue fluf flux fudd fude fuel fuff fufu fule full fulu fuxl fxdd le-u lede leed leef leel lefe leff lele lell lelu leud lexx llef lleu llll llud ludd lude lued luef lufe luff lufu lule lull lulu luxe lxde lxxx udel uele uell ufel uffe ulde ulee ulex ulfe ulle ulul uulu uuuu uxue uxul x-ed xdxf xefe xexe xuld xuxu xxxx