/// <summary> /// Return tokenized set of a string. /// </summary> /// <param name="word">input</param> /// <returns>tokenized version of a string as a set</returns> public Collection <string> TokenizeToSet(string word) { if (!String.IsNullOrEmpty(word)) { SuppliedWord = word; return(TokenUtilities.CreateSet(Tokenize(word))); } return(null); }