hob[7], bio[6], obi[6], oho[6], bor[6], hoi[5], ohr[5], rho[5], roh[5], ido[4], iod[4], ihr[4], rod[4], roi[4], dir[3],
ob[5], bi[4], ho[4], oh[4], hi[3], do[3], od[3],
