blef[11], felg[11], efeb[10], belg[9], gleb[9], ghee[8], bele[7], glee[7], hele[7],
elf[8], fee[7], beg[7], bel[6], ble[6], leg[6], hel[6], bee[5], ehe[5], lee[4],
ef[6], fe[6], be[4], eh[4], he[4], el[3], ee[2],
