{
  "rubric": "Help the train move forward by typing the right answer to score, then click on the balloon and drop it on the correct wagon.",
  "attempts": "2",
  "Questions": [
    ["Q1 A _____________ has no length, breadth, or thickness.", "point"],
    ["Q2 A line segment has _____________ endpoints.", "2"],
    [
      "Q3 A _____________ is a part of a line that starts at one point and goes on forever in one direction.",
      "ray"
    ],
    [
      "Q4 A shape with all sides closed is called a _____________ figure.",
      "closed"
    ],
    [
      "Q5  A _____________ is a closed figure made of straight lines.",
      "polygon"
    ]
  ]
}