TETRACHORDON

ad ae ah an ar at de do ed eh en er et ha he ho na ne no od oe oh on or re ta to

ace act ado and ane ant arc are art ate att cad can car cat cod con coo cor cot dah dan den doc doe don dor dot ear eat edh end eon era ern err eta eth had hae hao hat hen her het hod hoe hon hot nae nah net nod noh noo nor not nth oar oat oca oda ode oho one ono ooh oot ora orc ore ort rad rah ran rat rec red ret rho roc rod roe rot tad tae tan tao tar tat tea ted ten tet the tho tod toe ton too tor tot

aced ache acne acre aeon aero ahed ante arch arco cade cane cant card care carn carr cart cate cent cero chad chao char chat chon coat coda code coed coho cone coon coot cord core corn cote cred dace dare darn dart date dato dean dear deco dent doat doer dona done door dore dorr dote doth drat each earn eath echo echt etch etna hade haed haen haet hand hant hard hare hart hate head hear heat hent herd hern hero hoar hoed hoer hone hood hoot hora horn narc nard near neat nerd nett node nota note oath odah odea odor ohed once onto orad orca ordo orra otto race rand rant rare rate rath rato read rear redo rend rent rhea road roan roar rode rood root rota rote roto tace tach taco tact tahr tare tarn taro tart tate tear teat tech tend tent tern teth thae than that then thro toad toea toed tone toon toot tora torc tore torn toro torr tort tote trad tret trod trot