uowy[7], suwy[7], uowe[6], osuw[6], owsu[6], owsy[5], sowy[5],
esu[5], sou[5], suw[5], esy[4], osy[4], ewy[4], ewo[3], owe[3], swe[3],
su[4], wu[4], wy[3], eo[2], es[2], se[2], os[2], ew[2], we[2],
