string_dictionaryOrder--Given two Strings containing a single word each return them both words as a single string in dictionary order (alphabetically) with a comma and a space separating the two words.

If the two words are the same return a String containg a message saying: "'word1' and 'word2' are the same word."

If one of the Strings is empty return the other String, but if both are empty return a message saying "There are no words to compare."