{"type": "FeatureCollection", "_meta": {"__meta__": "synthetic", "disclaimer": "Synthetic demo data inspired by real Baltic geography, MMSI/OUI conventions, and infrastructure. Not real observations.", "dataset": "s9-porvoo-drone/infra_used", "version": "1.0"}, "features": [{"type": "Feature", "geometry": {"type": "Point", "coordinates": [25.63, 60.196]}, "properties": {"featureId": "em\u00e4salo-channel", "name": "Em\u00e4salo Channel", "type": "maritime_access", "criticality": "medium"}}, {"type": "Feature", "geometry": {"type": "Point", "coordinates": [25.55, 60.296]}, "properties": {"featureId": "kilpilahti-refinery", "name": "Kilpilahti Oil Refinery (Neste)", "type": "energy_refinery", "criticality": "critical"}}, {"type": "Feature", "geometry": {"type": "Point", "coordinates": [25.562, 60.292]}, "properties": {"featureId": "kilpilahti-lng", "name": "Kilpilahti LNG Terminal", "type": "energy_lng", "criticality": "critical"}}, {"type": "Feature", "geometry": {"type": "Point", "coordinates": [25.598, 60.346]}, "properties": {"featureId": "e18-bridge-porvoo", "name": "E18 Motorway Bridge (Porvoo)", "type": "transport", "criticality": "high"}}, {"type": "Feature", "geometry": {"type": "Point", "coordinates": [25.615, 60.365]}, "properties": {"featureId": "porvoo-substation", "name": "Porvoo Power Substation", "type": "energy_grid", "criticality": "high"}}, {"type": "Feature", "geometry": {"type": "Point", "coordinates": [25.663, 60.393]}, "properties": {"featureId": "porvoo-old-town", "name": "Porvoo Old Town / Cathedral", "type": "civilian_cultural", "criticality": "high"}}]}