tiret[7], tetro[7],
tetr[6], tret[6], titr[6], tort[6], erot[5], tero[5], trio[5], troi[5],
tit[5], eto[4], toi[4], ret[4], ter[4], itr[4], tir[4], tri[4], ort[4], rot[4], tor[4], rei[3], ero[3], roi[3],
et[3], te[3], ot[3], to[3], eo[2], er[2], re[2], or[2], ro[2],
