ruse[6], sure[6], rusi[6], susi[6], sire[4], ssie[4], sers[4],
rui[5], esu[5], siu[5], rus[5], sur[5], sus[5], rei[3], eis[3], sie[3], ser[3], sir[3],
su[4], er[2], re[2], es[2], se[2], si[2],
