efir[8], dedr[6], dred[6], dier[5], peri[5],
pfe[8], pif[8], ref[7], dip[5], pie[4], der[4], red[4], per[4], rep[4], rei[3],
ef[6], fe[6], fi[6], de[3], id[3], pe[3], pi[3], er[2], re[2],
