{
    "name": "Fertilizer",
    "constraints" : {
        "W": { "equal": 40, "weight": 1, "priority": 2 },
        "N": { "equal": 50, "weight": 1, "priority": 1 },
        "P": { "equal": 20, "weight": 2, "priority": 1 },
        "K": { "equal": 30, "weight": 1, "priority": 1 }
    },
    "variables" : {
        "Fertilizer A": { "N" : 36.00, "P" : 0.00,  "K" : 0.00,  "W" : 40 },
        "Fertilizer B": { "N" : 15.00, "P" : 15.00, "K" : 15.00, "W" : 40 },
        "Fertilizer C": { "N" : 5.00,  "P" : 25.00, "K" : 10.00, "W" : 40 }
    },
    "expects": {
        "feasible": true,
        "r1": 46.66666667,
        "r4": 10,
        "Fertilizer A": 0.83333333,
        "Fertilizer B": 1.33333333,
        "result": 0
    }
}