efą[11], elf[8], fen[7], nef[7], ref[7], erą[7], ewą[7], rwą[7], wrą[7], len[4], lew[4], ner[3], ren[3], wen[3], rew[3], wre[3],
ef[6], fe[6], el[3], en[2], er[2], re[2], ew[2], we[2],
