buc[8], bus[7], cab[6], ecu[6], bee[5], bas[5], esu[5], baw[5], wab[5], web[5], suw[5], ces[4], cew[4], ewa[3], ewe[3], swa[3], was[3], swe[3],
bu[6], ba[4], be[4], au[4], su[4], wu[4], ce[3], ee[2], as[2], es[2], se[2], ew[2], we[2],
