{
    "hints":  [
                  {
                      "text":  "Imagine folding the shape along a line through the middle.",
                      "level":  1
                  },
                  {
                      "text":  "Do both halves look exactly the same after folding?",
                      "level":  2
                  },
                  {
                      "text":  "The two sides are not mirror images, so the figure is not symmetric.",
                      "level":  3
                  }
              ]
}