biot[7], bito[7], tipi[6], pito[6], topi[6],
bit[6], bot[6], boi[5], obi[5], pit[5], pot[5], top[5], poi[4], toi[4], iii[3],
bi[4], bo[4], pi[3], op[3], po[3], ot[3], to[3], ii[2],
