{
    "hints":  [
                  {
                      "text":  "Fold the shape along the dotted line shown.",
                      "level":  1
                  },
                  {
                      "text":  "Are both halves the same shape and size?",
                      "level":  2
                  },
                  {
                      "text":  "The halves are not identical, so they do not fit exactly.",
                      "level":  3
                  }
              ]
}