biot[7], bito[7], bitw[7], ciot[6], cito[6], tico[6], twoi[5], wito[5], witw[5],
cob[6], bit[6], bot[6], boi[5], obi[5], toi[4], wic[4], iwo[3], owi[3], wio[3], wow[3],
bi[4], bo[4], ci[3], co[3], ot[3], to[3], iw[2],