{
    "hints":  [
                  {
                      "text":  "Try to find a line that cuts the shape into two matching parts.",
                      "level":  1
                  },
                  {
                      "text":  "If one half is a perfect mirror of the other, the figure is symmetric.",
                      "level":  2
                  },
                  {
                      "text":  "This figure has a line that divides it into two identical halves.",
                      "level":  3
                  }
              ]
}