dddd ddre dedd dede dedo deed deer deor der- dere dero derr dex- dexe dhed dhee dher dhod dhor do-x dod- dodd dode dodo doer dohr dood door dord dore doro dorr dred dree dreh drod droh dxdr dxed dxrd dxre dxrr dxrx dxxr dxxx edde eddo ede- edeh eder edex edod eede eeee eero ehdd eheh eher ehre eode eore er-x erde ered erer erod eroe eroo erre erro exed exer exh- exo- exod exor exrx hdod hedd hede hedo heed heer hehe heho heor herd here hero herr hex- hexe hhex hhhh hode hodh hodr hoed hoer hohe hoho hood hooe hoor hoox hord hore horo horr hree hrod o-eo oddd oded odeo oder odex odoh odoo odor oedo oere ohed ohee oher ohho ohoh ohre ooer ooho oooh oooo oord oore orde ordo ore- ored oreh oreo orer orex orhe oro- oroe oror orro oxer oxo- oxox oxxo rder redd rede redh redo redr redx reed rehe reod rerd rere rero rexx rhee rheo rhex rhod rhoh rodd rode rodo roed roer rohe rohr rood roor roox rore roro roxo rred rrrr x-ed xeer xer- xero xexe xoro xoxo xrod xxxo xxxx