kefie[10],
efeb[10], efie[8], bied[7], beki[7], deki[6], idee[5],
fik[8], fee[7], bid[6], bek[6], bee[5], dek[5], kei[4], kie[4],
ef[6], fe[6], fi[6], be[4], bi[4], de[3], id[3], ki[3], ee[2],
