fen[7], nef[7], efo[7], fon[7], cen[4], cne[4], noc[4], cew[4], eon[3], one[3], wen[3], ewo[3], owe[3], won[3],
ef[6], fe[6], ce[3], co[3], en[2], eo[2], no[2], on[2], ew[2], we[2],
