ossi[5], ross[5], soss[5], sous[5], usos[5], sirr[4], riss[4], sirs[4], surr[4], russ[4], usus[4],
roi[4], sou[4], uso[4], irr[3], sir[3], iss[3], rus[3], sur[3], urs[3],
os[3], so[3], si[2], ui[2], ur[2],
