oaza[4], waza[4], wazo[4], woza[4],
ewa[3], owa[3], ewo[3], owe[3], eza[3], oaz[3], ezo[3], waz[3], zew[3],
aa[2], eo[2], ew[2], we[2], za[2], ez[2], ze[2], oz[2],
