howei[7],
obie[6], webo[6], wiew[4],
boi[5], obi[5], hoi[5], web[5], hiw[5], wie[3], ewo[3], owe[3], iwo[3], owi[3], wio[3], wow[3],
be[4], eh[4], he[4], bi[4], hi[4], bo[4], ho[4], oh[4], eo[2], ew[2], we[2], iw[2],
