flep[10], fere[8], free[8], pele[6], lepr[6], perl[6],
elf[8], pfe[8], fee[7], ref[7], frr[7], lep[5], pel[5], ple[5], lee[4], per[4], rep[4], prr[4],
ef[6], fe[6], el[3], pe[3], ee[2], er[2], re[2],
