pfe[8], fee[7], efo[7], hep[6], hop[6], ehe[5], ewe[3], ewo[3], owe[3],
ef[6], fe[6], eh[4], he[4], ho[4], oh[4], pe[3], op[3], po[3], ee[2], eo[2], ew[2], we[2],
