rusy[7], rysu[7], sury[7], ruse[6], sure[6], rusi[6], sery[5], irys[5], rysi[5], esie[4], eser[4], sire[4],
rui[5], esu[5], siu[5], rus[5], sur[5], ery[4], esy[4], rys[4], rei[3], eis[3], sie[3], ser[3], sir[3],
su[4], ee[2], er[2], re[2], es[2], se[2], si[2],
