[
  {
    "id": "Default",
    "class": "Compartment"
  },
  {
    "id": "A",
    "class": "Species",
    "compartment": "Default"
  },
  {
    "id": "C",
    "class": "Species",
    "compartment": "Default"
  },
  {
    "id": "B",
    "class": "Species",
    "compartment": "Default"
  },
  {
    "id": "D",
    "class": "Species",
    "compartment": "Default"
  },
  {
    "id": "V_in",
    "class": "Reaction",
    "actors": " => A"
  },
  {
    "id": "V1",
    "class": "Reaction",
    "actors": "A + C => B + D"
  },
  {
    "id": "V2",
    "class": "Reaction",
    "actors": "D => C"
  },
  {
    "id": "V_out",
    "class": "Reaction",
    "actors": "B => "
  },
  {
    "id": "V_in",
    "assignments": {
      "ode_": "k1"
    }
  },
  {
    "id": "V1",
    "assignments": {
      "ode_": "k2*A*C"
    }
  },
  {
    "id": "V2",
    "assignments": {
      "ode_": "k3*D"
    }
  },
  {
    "id": "V_out",
    "assignments": {
      "ode_": "k4*B"
    }
  },
  {
    "id": "Default",
    "assignments": {
      "start_": "1.000000e+00"
    }
  },
  {
    "id": "A",
    "assignments": {
      "start_": "1.898501e+00"
    }
  },
  {
    "id": "C",
    "assignments": {
      "start_": "1.490793e+00"
    }
  },
  {
    "id": "B",
    "assignments": {
      "start_": "1.300637e+00"
    }
  },
  {
    "id": "D",
    "assignments": {
      "start_": "1.234049e+00"
    }
  },
  {
    "id": "k1",
    "class": "Record",
    "assignments": {
      "start_": "1.944853e+00"
    }
  },
  {
    "id": "k2",
    "class": "Const",
    "num": 1.93148
  },
  {
    "id": "k3",
    "class": "Const",
    "num": 1.738867
  },
  {
    "id": "k4",
    "class": "Const",
    "num": 1.541431
  },
  {
    "id": "evt1_",
    "class": "TimeSwitcher",
    "start": "2",
    "period": "5"
  },
  {
    "id": "B",
    "assignments": {
      "evt1_": "1 * B + 1"
    }
  }
]