ceik[6], ceki[6], ciek[6], icek[6], kice[6], koce[6], koci[6],
cek[5], kic[5], koc[5], cie[4], kei[4], kie[4], eko[4], kio[4], koi[4],
ce[3], ci[3], ki[3], co[3], ko[3], ok[3], eo[2],
