ssawy[6], wsysa[6], ssawa[5],
asas[4], sasa[4], ssaw[4],
asy[4], esy[4], ewy[4], asa[3], sas[3], ewa[3], swa[3], was[3], swe[3],
wy[3], aa[2], as[2], es[2], se[2], ew[2], we[2],
