fifek[14], fifki[14], kefii[10], firek[10], kefir[10], firki[10], ferii[9], reiki[6],
riff[12], efir[8], erki[5], kier[5], reki[5],
fik[8], ref[7], kei[4], kie[4], kii[4], ker[4], rek[4], ikr[4], kir[4], rei[3],
ef[6], fe[6], fi[6], ki[3], ii[2], er[2], re[2],
