fernen[9], ferner[9], renner[6],
fenne[8], ferne[8], renen[5], renne[5],
feen[7], fenn[7], fern[7], eren[4], neer[4], rene[4], renn[4],
fee[6], nee[3], ree[3], ern[3], ren[3],
ne[2], er[2], re[2],
