bell[8], belo[7], bole[7], ebol[7], oble[7], lole[6], webo[6], lewo[5], wole[5],
bel[6], ble[6], bol[6], lob[6], lol[5], web[5], ole[4], lew[4], ewo[3], owe[3],
be[4], bo[4], el[3], eo[2], ew[2], we[2],
