belg[9], gleb[9], chen[7],
beg[7], che[6], ech[6], hec[6], bel[6], ble[6], leg[6], hel[6], cel[5], cle[5], lec[5], ben[5], gen[5], hen[5], cen[4], cne[4], len[4],
be[4], eh[4], he[4], ce[3], el[3], en[2],
