efeb[10], kwef[9], sfen[8], beks[7], kweb[7], esek[5], news[4],
fee[7], fen[7], nef[7], fes[7], bek[6], bee[5], ben[5], web[5], eks[4], wek[4], sen[3], ewe[3], wen[3], swe[3],
ef[6], fe[6], be[4], ee[2], en[2], es[2], se[2], ew[2], we[2],
