fette[8], frett[8], etter[5], rette[5], teert[5], trete[5],
feet[7], fete[7], fett[7], reet[4], teer[4], teet[4], tete[4], rett[4], tret[4],
fee[6], ree[3], tee[3],
er[2], re[2], et[2],
