sigm[7], tigr[7], mirt[6], mitr[6], istm[6], miss[5], sitw[5], wist[5],
mig[6], git[6], gir[5], igr[5], irg[5], gis[5], mit[5], wig[5], mir[4], mis[4], sim[4], itr[4], tir[4], tri[4], sit[4], tss[4], sir[3], wir[3], siw[3], wis[3], wsi[3],
im[3], mi[3], ts[3], si[2], iw[2],
