item-0 at level 0: unspecified: group _root_
  item-1 at level 1: caption: Clickable Example
  item-2 at level 1: picture
    item-2 at level 2: caption: Clickable Example
  item-3 at level 1: caption: This is an example caption for the image.
  item-4 at level 1: picture
    item-4 at level 2: caption: This is an example caption for the image.
  item-5 at level 1: caption: This is an example caption for the image.
  item-6 at level 1: picture
    item-6 at level 2: caption: This is an example caption for the image.