ceru[7], suce[7], renu[6], uren[6], ruse[6], sure[6], scen[5], serc[5],
ecu[6], cru[6], nur[5], run[5], urn[5], esu[5], snu[5], rus[5], sur[5], cen[4], cne[4], cer[4], ces[4], ner[3], ren[3], sen[3], ser[3],
nu[4], su[4], ce[3], en[2], er[2], re[2], es[2], se[2],
