erko[5], kore[5], orek[5], kron[5], nero[4], orne[4],
eko[4], nok[4], ker[4], rek[4], kor[4], kro[4], okr[4], ork[4], rok[4], eon[3], one[3], ner[3], ren[3], ero[3], nor[3],
ko[3], ok[3], en[2], eo[2], no[2], on[2], er[2], re[2], or[2], ro[2],
