bece[7], obce[7], webo[6], wece[5], cewo[5], owce[5], woce[5],
cob[6], bee[5], web[5], cew[4], ewe[3], ewo[3], owe[3],
be[4], bo[4], ce[3], co[3], ee[2], eo[2], ew[2], we[2],
