/// <summary>
/// Returns a list of auto-complete matches and partial matches.
/// </summary>
/// <param name="fragment">the prefix of the word to search for.</param>
/// <returns></returns>
public IList <ICandidate> GetWords(string fragment)
{
return(_Trie.GetByPrefix(fragment).Select(word => (ICandidate) new Candidate(word.Value, word.Count)).ToList());
}
