TRIHEDRON

de do ed eh en er et he hi ho id in it ne no od oe oh oi on or re ti to

den die din dit doe don dor dot edh end eon ern err eth hen her het hid hie hin hit hod hoe hon hot ion ire net nit nod noh nor not nth ode one ore ort red rei ret rho rid rin rod roe rot ted ten the tho tie tin tod toe ton tor

deni dent diet dine dino dint dire dirt dite doer doit done dore dorr dote doth edit heir hent herd hern hero hide hied hind hint hire hoed hoer hone horn inro into ired iron nerd nide nite node nodi noir nori note ohed redo rein rend rent ride rind riot rite rode rote roti tend tern then thin thio thir thro tide tied tier tine tire tiro toed tone tore tori torn torr trio trod