ido[4], iod[4], rod[4], roi[4], dos[4], ods[4], sod[4], duo[4], sou[4], uso[4], dir[3], dis[3], sir[3], dur[3], sud[3], uds[3], rus[3], sur[3], urs[3],
do[3], od[3], os[3], so[3], si[2], du[2], ud[2], ui[2], ur[2],
