efów[12], foce[9], opów[9], cewo[5], owce[5], woce[5],
pfe[8], efo[7], cep[5], cew[4], ewo[3], owe[3],
ef[6], fe[6], ów[6], ce[3], co[3], pe[3], op[3], po[3], eo[2], ew[2], we[2],
