private void btnCreateRelation_Click(object sender, EventArgs e)
        {
            SimpleWordList sw = new SimpleWordList();

            //SimpleWordList swlOut = new SimpleWordList();
            sw.LoadFromPrimitiveFile(fileNamein);
            int size = sw.Count;

            for (int i = 0; i < size - 1; ++i)
            {
                for (int j = i + 1; j < size; ++j)
                {
                    if (String.Equals(sw[i].explanation, sw[j].explanation))
                    {
                        if (sw[i].inf.Length < sw[j].inf.Length)
                        {
                            sw[j].inf = sw[i].inf;
                            sw[j].derivateives.Add("");
                        }
                        else if (sw[i].inf.Length > sw[j].inf.Length)
                        {
                            sw[i].inf = sw[j].inf;
                        }
                    }
                }
            }

            StreamWriter ofile = new StreamWriter(fileNameout);

            foreach (SimpleWord s in sw)
            {
                ofile.WriteLine(s.word + " = " + s.inf);
            }
            ofile.Close();
            MessageBox.Show("Finish ... ");
        }