code: public Property get(P property)
    {
      Preconditions.checkNotNull(property);
      return lookup(converter.convert(property)).get();
    }
docs: Returns the {@link Property} for the given enum item contained in this
  vocabulary.
  
  @param property
  the property to look up, must not be <code>null</code>
  @return the result of looking up <code>property</code> in this vocabulary.