[
  {
    "invocation": 0,
    "airspaceState": [
      ""
    ]
  },
  {
    "invocation": 1,
    "airspaceState": [
      "Airspace is empty"
    ]
  },
  {
    "invocation": 2,
    "airspaceState": [
      "GAG-67 is flying in airspace (100 PAX)",
      "WeatherBalloon 99 is flying in airspace"
    ]
  },
  {
    "invocation": 3,
    "airspaceState": [
      "GAG-67 is flying in airspace (0 PAX)",
      "WeatherBalloon 99 is flying in airspace"
    ]
  },
  {
    "invocation": 4,
    "airspaceState": [
      "GAG-67 is flying in airspace (0 PAX)",
      "WeatherBalloon 99 is flying in airspace",
      "D-AFFF is flying in airspace"
    ]
  },
  {
    "invocation": 5,
    "airspaceState": [
      "GAG-67 is flying in airspace (0 PAX)",
      "WeatherBalloon 99 is flying in airspace",
      "D-AFFF is flying in airspace",
      "D-ABBB is flying in airspace (30 PAX)"
    ]
  },
  {
    "invocation": 6,
    "airspaceState": [
      "GAG-67 is flying in airspace (0 PAX)",
      "WeatherBalloon 99 is flying in airspace"
    ]
  },
  {
    "invocation": 7,
    "airspaceState": [
      "GAG-67 is flying in airspace (0 PAX)"
    ]
  }
]
