enol[5], zele[5], zole[5], noez[4], ozen[4], ozon[4], zono[4],
lee[4], len[4], ole[4], zol[4], eon[3], one[3], ono[3], zen[3], ezo[3], zon[3], zoo[3],
el[3], ee[2], en[2], eo[2], no[2], on[2], ez[2], ze[2], oz[2],
