weba[6], obaw[6], webo[6],
abo[5], boa[5], oba[5], baw[5], wab[5], web[5], aaa[3], ewa[3], owa[3], ewo[3], owe[3],
ba[4], be[4], bo[4], aa[2], eo[2], ew[2], we[2],
