fon[7], for[7], orf[7], fos[7], sof[7], jon[5], jor[5], por[4], pro[4], rop[4], osp[4], nor[3], nos[3], son[3], ros[3],
oj[4], op[3], po[3], no[2], on[2], or[2], ro[2], os[2],
