flirr[9], frier[8],
feil[8], fiel[8], file[8], lief[8], fier[7], frei[7], reif[7], rief[7], iler[5], lire[5], reli[5], irre[4],
elf[7], fei[6], eil[4], lei[4], ire[3], irr[3],
ei[2], er[2], re[2],
