mewi[5], wiem[5], mews[5], siew[4], siwe[4], wsie[4],
mes[4], sem[4], mis[4], sim[4], mew[4], eis[3], sie[3], wie[3], swe[3], siw[3], wis[3], wsi[3],
em[3], me[3], im[3], mi[3], es[2], se[2], si[2], ew[2], we[2], iw[2],
