bido[7], biot[7], bito[7], bort[7], torb[7], brio[6], broi[6], robi[6], dior[5], trio[5], troi[5],
bid[6], bod[6], bit[6], bot[6], boi[5], obi[5], bor[5], rob[5], dit[5], doi[4], ido[4], odr[4], ord[4], rod[4], toi[4], itr[4], tir[4], tri[4], ort[4], rot[4], tor[4], roi[3],
bi[4], bo[4], id[3], do[3], od[3], ot[3], to[3], or[2], ro[2],
