elf[8], pfe[8], fen[7], nef[7], hel[6], hem[6], hep[6], mel[5], hen[5], lep[5], pel[5], ple[5], len[4], men[4], nem[4], nep[4], pen[4],
ef[6], fe[6], hm[5], eh[4], he[4], el[3], em[3], me[3], pe[3], en[2],
