perle[7], neper[6], pener[6],
pele[6], lepr[6], perl[6], nerp[5],
lep[5], pel[5], ple[5], lee[4], len[4], nep[4], pen[4], per[4], rep[4], ner[3], ren[3],
el[3], pe[3], ee[2], en[2], er[2], re[2],
