{
    "objects": [
        {
            "name": "street_rails",
            "type": "road_features",
            "description": "Embedded tram/trolley rails running down the center of the street.",
            "polygon": [
                [
                    463,
                    756
                ],
                [
                    498,
                    756
                ],
                [
                    560,
                    1010
                ],
                [
                    525,
                    1010
                ]
            ]
        },
        {
            "name": "left_row_of_cars",
            "type": "vehicles",
            "description": "Parked vehicles along the left curb.",
            "polygon": [
                [
                    0,
                    340
                ],
                [
                    360,
                    340
                ],
                [
                    430,
                    870
                ],
                [
                    70,
                    900
                ]
            ]
        },
        {
            "name": "right_row_of_cars",
            "type": "vehicles",
            "description": "Parked vehicles along the right curb.",
            "polygon": [
                [
                    980,
                    365
                ],
                [
                    1280,
                    365
                ],
                [
                    1250,
                    920
                ],
                [
                    960,
                    900
                ]
            ]
        },
        {
            "name": "left_buildings",
            "type": "buildings",
            "description": "Left-side row of multi-story buildings.",
            "polygon": [
                [
                    0,
                    120
                ],
                [
                    340,
                    120
                ],
                [
                    430,
                    970
                ],
                [
                    0,
                    980
                ]
            ]
        },
        {
            "name": "right_buildings",
            "type": "buildings",
            "description": "Right-side row of multi-story buildings.",
            "polygon": [
                [
                    870,
                    120
                ],
                [
                    1280,
                    120
                ],
                [
                    1280,
                    980
                ],
                [
                    910,
                    950
                ]
            ]
        },
        {
            "name": "utility_poles_and_wires",
            "type": "infrastructure",
            "description": "Utility poles and overhead wires spanning the street.",
            "polygon": [
                [
                    460,
                    140
                ],
                [
                    560,
                    140
                ],
                [
                    600,
                    820
                ],
                [
                    490,
                    860
                ]
            ]
        },
        {
            "name": "tree_canopy_left",
            "type": "vegetation",
            "description": "Tree canopy overhanging the left side of the street.",
            "polygon": [
                [
                    90,
                    0
                ],
                [
                    470,
                    0
                ],
                [
                    410,
                    250
                ],
                [
                    70,
                    220
                ]
            ]
        },
        {
            "name": "distant_building_center",
            "type": "buildings",
            "description": "A tall central building visible in the distance.",
            "polygon": [
                [
                    570,
                    170
                ],
                [
                    710,
                    170
                ],
                [
                    760,
                    520
                ],
                [
                    610,
                    560
                ]
            ]
        }
    ],
    "regions": [
        {
            "name": "driving_lane_center",
            "type": "road_region",
            "description": "The main roadway region in the center with visible embedded rails.",
            "polygon": [
                [
                    420,
                    380
                ],
                [
                    860,
                    380
                ],
                [
                    900,
                    1040
                ],
                [
                    380,
                    1040
                ]
            ]
        },
        {
            "name": "left_parking_area",
            "type": "road_edge_region",
            "description": "Left side region containing parked cars and curbside space.",
            "polygon": [
                [
                    0,
                    360
                ],
                [
                    420,
                    360
                ],
                [
                    450,
                    1020
                ],
                [
                    0,
                    1020
                ]
            ]
        },
        {
            "name": "right_parking_area",
            "type": "road_edge_region",
            "description": "Right side region containing parked cars and curbside space.",
            "polygon": [
                [
                    860,
                    360
                ],
                [
                    1280,
                    360
                ],
                [
                    1280,
                    1020
                ],
                [
                    800,
                    1020
                ]
            ]
        },
        {
            "name": "sidewalk_or_building_corridor_left",
            "type": "sidewalk_region",
            "description": "Left corridor along building fronts.",
            "polygon": [
                [
                    0,
                    120
                ],
                [
                    360,
                    120
                ],
                [
                    420,
                    980
                ],
                [
                    0,
                    980
                ]
            ]
        },
        {
            "name": "sidewalk_or_building_corridor_right",
            "type": "sidewalk_region",
            "description": "Right corridor along building fronts.",
            "polygon": [
                [
                    860,
                    120
                ],
                [
                    1280,
                    120
                ],
                [
                    1280,
                    980
                ],
                [
                    910,
                    950
                ]
            ]
        }
    ],
    "semantic_relationships": [
        {
            "from": "driving_lane_center",
            "to": "street_rails",
            "relation": "contains"
        },
        {
            "from": "driving_lane_center",
            "to": "left_row_of_cars",
            "relation": "adjacent_to"
        },
        {
            "from": "driving_lane_center",
            "to": "right_row_of_cars",
            "relation": "adjacent_to"
        },
        {
            "from": "left_parking_area",
            "to": "left_row_of_cars",
            "relation": "contains"
        },
        {
            "from": "right_parking_area",
            "to": "right_row_of_cars",
            "relation": "contains"
        },
        {
            "from": "sidewalk_or_building_corridor_left",
            "to": "left_buildings",
            "relation": "alongside"
        },
        {
            "from": "sidewalk_or_building_corridor_right",
            "to": "right_buildings",
            "relation": "alongside"
        },
        {
            "from": "utility_poles_and_wires",
            "to": "left_buildings",
            "relation": "supported_by_or_connected_to"
        },
        {
            "from": "utility_poles_and_wires",
            "to": "right_buildings",
            "relation": "supported_by_or_connected_to"
        },
        {
            "from": "tree_canopy_left",
            "to": "left_buildings",
            "relation": "overhangs"
        },
        {
            "from": "driving_lane_center",
            "to": "distant_building_center",
            "relation": "points_towards"
        }
    ],
    "current_location": "driving_lane_center",
    "plans": []
}