efeb[10], kwef[9], kweb[7],
fee[7], fen[7], nef[7], łeb[7], bek[6], bee[5], ben[5], web[5], wek[4], ewe[3], wen[3],
ef[6], fe[6], be[4], eł[4], ee[2], en[2], ew[2], we[2],
