euro[6], uroi[6], ruse[6], sure[6], rusi[6], suro[6], osie[4], sire[4], eros[4], rosi[4],
rui[5], oru[5], esu[5], siu[5], sou[5], rus[5], sur[5], rei[3], ero[3], roi[3], eis[3], sie[3], osi[3], sio[3], soi[3], ser[3], sir[3], ros[3],
uu[6], su[4], eo[2], er[2], re[2], or[2], ro[2], es[2], se[2], si[2], os[2],