private void Add(string input, string output, bool keepOrig)
{
if (VERBOSE)
{
Console.WriteLine(" add input=" + input + " output=" + output + " keepOrig=" + keepOrig);
}
CharsRef inputCharsRef = new CharsRef();
SynonymMap.Builder.Join(space.Split(input), inputCharsRef);
CharsRef outputCharsRef = new CharsRef();
SynonymMap.Builder.Join(space.Split(output), outputCharsRef);
b.Add(inputCharsRef, outputCharsRef, keepOrig);
}