{
    "node": {
        "id": "rack_market:market-rock-rapids-ia",
        "entity_type": "rack_market",
        "entity_id": "market-rock-rapids-ia",
        "name": "Rock Rapids, IA",
        "city": "Rock Rapids",
        "state": "IA",
        "latitude": 43.431754,
        "longitude": -96.191146,
        "status": "active",
        "products": [
            "gasoline_diesel",
            "ethanol"
        ],
        "opis_code": 521,
        "opis_name": "Rock Rapids",
        "url": "https://thinkingonenergy.com/supply/market/market-rock-rapids-ia/",
        "provenance": {
            "origin": "research",
            "verification": "sourced",
            "last_modified": "2026-10-07T03:35:14-05:00",
            "publisher": "Thinking On Energy"
        }
    },
    "connections": [
        {
            "direction": "inbound",
            "other": {
                "id": "rack_terminal:nustar-energy-rock-rapids-terminal-rock-rapids-ia",
                "entity_type": "rack_terminal",
                "name": "Nustar Energy Rock Rapids Terminal",
                "city": "Rock Rapids",
                "state": "IA",
                "tcn_code": "T-42-IA-3472",
                "url": "https://thinkingonenergy.com/supply/terminal/T-42-IA-3472/",
                "json": "https://thinkingonenergy.com/supply/node/rack_terminal/nustar-energy-rock-rapids-terminal-rock-rapids-ia.json"
            },
            "id": "edge:51f2f7e822448954",
            "from": "rack_terminal:nustar-energy-rock-rapids-terminal-rock-rapids-ia",
            "to": "rack_market:market-rock-rapids-ia",
            "from_entity_type": "rack_terminal",
            "from_entity_id": "nustar-energy-rock-rapids-terminal-rock-rapids-ia",
            "to_entity_type": "rack_market",
            "to_entity_id": "market-rock-rapids-ia",
            "relationship": "serves",
            "transport_mode": "truck_rack",
            "pipeline_system": "NuStar East Products Pipeline",
            "opis_code": 521,
            "method": "city_match",
            "edge_status": "active",
            "label": "serves by truck rack",
            "provenance": {
                "origin": "research",
                "verification": "sourced",
                "confidence": "high",
                "basis": "rack market mapping by city",
                "last_modified": "2026-10-07T03:35:14-05:00",
                "publisher": "Thinking On Energy"
            }
        }
    ],
    "vocabulary": "https://thinkingonenergy.com/supply/vocab/",
    "generated_at": "2026-10-09T02:34:39+00:00",
    "citation": "Thinking On Energy, Supply Explorer, https://thinkingonenergy.com/supply/market/market-rock-rapids-ia/, accessed 2026-10-09."
}