{
    "nodes": [
        {
            "name": "supply2",
            "type": "Input",
            "max_flow": "supply2_max_flow"
        }
    ],
    "edges": [
        ["supply2", "link1"]
    ],
    "parameters": {
        "supply2_max_flow": {
            "type": "constant",
            "value": 50
        }
    }
}
