hobo[8], biot[7], bito[7], boot[7], oboi[6],
bit[6], hit[6], bot[6], hot[6], boi[5], obi[5], hoi[5], oho[5], toi[4], oto[4],
bi[4], hi[4], bo[4], ho[4], oh[4], ot[3], to[3],