*/
    private String loc;

    /**
     * The caption of the image.
     */
    private String caption;

    /**
     * The geographic location of the image.
     * For example, "Limerick, Ireland".
     */
    private String geoLocation;

    /**
     * The title of the image.
     */
    private String title;

    /**
     * A URL to the license of the image.
     */

   *     GraphBuilder.undirected()
   *         .<Country>immutable()
   *         .putEdge(FRANCE, GERMANY)
   *         .putEdge(FRANCE, BELGIUM)
   *         .putEdge(GERMANY, BELGIUM)
   *         .addNode(ICELAND)
   *         .build();
   * }
   *
   * <p>Builder instances can be reused; it is safe to call {@link #build} multiple times to build