db.json

{
    "members": [
        {
            "id": 0,
            "first_name": "Henk",
            "last_name": "Henkerson",
            "sports": [
                0
            ]
        },
        {
            "id": 1,
            "first_name": "Jolanda",
            "last_name": "Jola",
            "sports": [
                1,
                2
            ]
        },
        {
            "id": 2,
            "first_name": "Cold",
            "last_name": "Kermis",
            "sports": [
                0,
                1,
                2
            ]
        },
        {
            "id": 3,
            "first_name": "Lydia",
            "last_name": "Pink",
            "sports": [
                2
            ]
        }
    ],
    "sports": [
        {
            "id": 0,
            "name": "Football"
        },
        {
            "id": 1,
            "name": "Squash"
        },
        {
            "id": 2,
            "name": "Tennis"
        }
    ]
}