Requires:

"Gravity"
{
  "or": [
    "canLongIBJ",
    {
      "and": [
        "HiJump",
        "canJumpIntoIBJ"
      ]
    }
  ]
}
{
  "obstaclesNotCleared": [
    "A",
    "B",
    "C"
  ]
}