{
  "castle_fret": {
    "shared": true,
    "constructorFn": ":castle.class",
    "arguments": [":sir_freight", [":tower", ":tower", [":tower", ":tower"]]],
    "tags": ["inanimate", "building"]
  },

  "sir_freight": {
    "shared": true,
    "constructorFn": ":knight.class",
    "arguments": ["Sir Freight", ":sword", {
      "strength": 40,
      "dexterity": 100,
      "quest": ":knight.quest",
      "tower": ":tower"
    }]
  },

  "sword": {
    "factoryFn": ":sword.factory",
    "tags": ["inanimate"]
  },

  "tower": {
    "constructorFn": ":tower.class",
    "arguments": [":tower.height"],
    "tags": ["inanimate", "building"]
  }

}