efom[9], pomb[8], pomp[7], opem[6],
fob[9], pfe[8], efo[7], bom[6], mob[6], mop[5], pop[5],
ef[6], fe[6], be[4], bo[4], em[3], me[3], om[3], pe[3], op[3], po[3], eo[2],
