pfu[10], puf[10], fru[9], fur[9], ruf[9], pfe[8], fen[7], nef[7], ref[7], pun[6], nur[5], run[5], urn[5], nep[4], pen[4], per[4], rep[4], ner[3], ren[3],
fu[8], uf[8], ef[6], fe[6], nu[4], pe[3], en[2], er[2], re[2],
