diff --git a/Onderdelen.md b/Onderdelen.md
index e5761bc..9b1a716 100644
--- a/Onderdelen.md
+++ b/Onderdelen.md
@@ -7,6 +7,32 @@ Hardware
 | media convertor  | fritsschuur | |
 | LC fibre | Fritsschuur -> werkplaats |  |
 
+```geojson
+{
+  "type": "FeatureCollection",
+  "features": [
+    {
+      "type": "Feature",
+      "id": 1,
+      "properties": {
+        "ID": 0
+      },
+      "geometry": {
+        "type": "Polygon",
+        "coordinates": [
+          [
+              [-90,35],
+              [-90,30],
+              [-85,30],
+              [-85,35],
+              [-90,35]
+          ]
+        ]
+      }
+    }
+  ]
+}
+```
 
 ```mermaid
 graph TD;