irgi[6], giro[6], igro[6], irgo[6], rogi[6],
ghi[7], goi[5], ogi[5], hoi[5], gir[5], igr[5], irg[5], gro[5], ogr[5], hor[5], rho[5], roi[3],
hi[4], go[4], ho[4], oh[4], ii[2], or[2], ro[2],
