feie[7], feen[7], fein[7], nife[7], efeu[7], eine[4], neue[4],
yen[12], yin[12], fee[6], fei[6], fun[6], nee[3], ein[3], nie[3], neu[3], uni[3],
ey[11], ny[11], ei[2], ne[2], in[2], ui[2], nu[2],
