code: private static boolean isArticleLink(String linkedArticleTitle) {
          String s = linkedArticleTitle.toLowerCase();
          return !(s.startsWith("image:") ||
                   s.startsWith("wikipedia:") ||
                   s.startsWith("template:") ||
                   s.startsWith("category:") ||
                   s.startsWith("portal:") ||
                   s.contains("(disambiguation)"));
      }
docs: Returns {@code true} if the article's title does not begin with a known
  set of non-article prefixes.  This method acts as a rough heuristic for
  assessing the type of link in a document.