endu[7], desu[7], eden[5], sedn[5],
edu[6], ued[6], dnu[6], nud[6], esu[5], snu[5], den[4], end[4], des[4], sen[3],
ud[5], nu[4], su[4], de[3], ee[2], en[2], es[2], se[2],
