FastText library C# usage

Program.cs

class Program
{
    static bool NearestNeighborsCallback(string word, Single score)
    {
        Console.WriteLine($"\"{word}\": {score}");
        return false;
    }

    static void NearestNeighbors(string modelFileName)
    {
        using (FastText ft = new FastText())
        {
            Console.Write($"Loading file \"{modelFileName}\"...");
            ft.LoadModel(modelFileName);
            Console.WriteLine("done.");

            Console.Write("Computing vectors...");
            IntPtr vectors = ft.PrecomputeVectors();
            try
            {
                Console.WriteLine("done.");
                while (true)
                {
                    Console.WriteLine("positive words:");
                    string input = Console.ReadLine();
                    if (string.IsNullOrEmpty(input))
                        break;

                    input = input + "\t";
                    string[] positive = input.Split(new char[] { ' ', '\t' });

                    Console.WriteLine("negative words:");
                    input = Console.ReadLine() + "\t";
                    string[] negative = input.Split(new char[] { ' ', '\t' });
                    ft.NN2(vectors, positive, negative, 5, new WordCallback(NearestNeighborsCallback));
                    Console.WriteLine();
                }
            }
            finally
            {
                ft.ReleaseVectors(vectors);
            }
        }
    }

    static void Main(string[] args)
    {
        NearestNeighbors(@"C:\Data\fasttext\wiki\enwik9.bin");
    }
}