code: public Rule trie(final String first, final String second,
          final String... others)
      {
          final List<String> words = ImmutableList.<String>builder().add(first)
              .add(second).add(others).build();
  
          return trie(words);
      }
docs: Match one string among many using a <a
  href="http://en.wikipedia.org/wiki/Trie" target="_blank">trie</a>
  
  <p>This method delegates to {@link #trie(Collection)}.</p>
  
  @param first the first string
  @param second the second string
  @param others other strings
  @return a rule
  
  @see TrieMatcher
  @see TrieNode