obce[7], ceno[5], noce[5], ocen[5], neon[4],
cob[6], ben[5], bon[5], cen[4], cne[4], noc[4], eon[3], one[3], non[3],
be[4], bo[4], ce[3], co[3], en[2], eo[2], no[2], on[2],
