neffe[11], reffe[11], erven[10], nerve[10], ferne[8],
reff[10], vene[9], erve[9], nerv[9], feen[7], fern[7], eren[4], neer[4], rene[4],
fee[6], cer[6], nee[3], ree[3], ern[3], ren[3],
ne[2], er[2], re[2],
