ceno[5], noce[5], ocen[5], node[5],
cod[5], doc[5], cen[4], cne[4], den[4], end[4], deo[4], ode[4], noc[4], dno[4], don[4], eon[3], one[3],
ce[3], de[3], co[3], do[3], od[3], en[2], eo[2], no[2], on[2],
