diff --git a/lookup.py b/lookup.py
index 5dae718..7c94016 100755
--- a/lookup.py
+++ b/lookup.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 
 from geopy import Nominatim
+# ~ import json
 
 geolocator = Nominatim(user_agent="my-mapper")
 
@@ -8,10 +9,25 @@ geolocator = Nominatim(user_agent="my-mapper")
 
 fn="ct-csv"
 with open( fn, 'r' ) as fp:
-    for line in fp:
-        location = geolocator.geocode(line)
-        # ~ print (location.latitude, location.longitude)
+    for place in fp:
+        #error handling: expect
+        arrAddress = place.split(",")
+        strAddress = ",".join(arrAddress[1:4])
+        # ~ print( strAddress )
+        location = geolocator.geocode( strAddress )
         if location is not None: # its a class
-            # ~ print (location)
-            print ( location.latitude, location.longitude)
-fp.close()
+            # todo: ceil coords to hide true location in format string
+            # ~ strCoordPlace = '{:s},{:.6f},{:.6f}'.format( arrAddress[3], location.latitude, location.longitude ) 
+            geojson = '{{"type":"Feature","geometry": {{"type": "Point","coordinates":[{:.6f}, {:.6f}]}},"properties":{{"name":"{:s}","marker":"ct"}}}}';
+            strCoordPlace = geojson.format( location.latitude, location.longitude, arrAddress[3] ) 
+            # ~ {"type": "Feature","geometry": {"type": "Point","coordinates":[125.6, 10.1]},"properties":{"name":"Dinagat Islands"}}
+            print ( strCoordPlace )
+
+# ~ m = folium.Map( # etc..)
+# ~ m.save("filename.png")
+
+# ~ https://github.com/python-visualization/folium/issues/35#issuecomment-164784086
+# ~ https://github.com/wbkd/leaflet-mapshot
+# ~ https://stackoverflow.com/questions/44800396/python-ipyleaflet-export-map-as-png-or-jpg-or-svg
+
+# ~ m = folium.Map(location=[51, 13], zoom_start=5, tiles='Stamen Toner') # Mapbox Bright , CartoDB Positron
diff --git a/prepare.sh b/prepare.sh
index 09a67c7..38845ad 100755
--- a/prepare.sh
+++ b/prepare.sh
@@ -11,10 +11,11 @@ test -e ct-csv && echo "file already exists." || curl -o ct-csv "https://"${auth
 test -e erfa-csv && echo "file already exists." || curl -o erfa-csv "https://"${auth}"doku.ccc.de/Spezial:Semantische_Suche/-5B-5BKategorie:Chaostreffs-5D-5D-20-5B-5BChaostreff-2DIs-2DErfa::wahr-5D-5D-20-5B-5BChaostreff-2DActive::wahr-5D-5D/-3FChaostreff-2DPhysical-2DAddress%3DAdresse/-3FChaostreff-2DPhysical-2DPostcode%3DPLZ/-3FChaostreff-2DPhysical-2DCity%3DStadt/-3FChaostreff-2DCountry%3DLand/mainlabel%3D/limit%3D100/order%3DASC/sort%3DErfa-2DCity/offset%3D0/format%3Dcsv/headers%3Dshow/searchlabel%3DCSV/sep%3D,/filename%3Derfa-2Dbesuchsadressen.csv"
 # preprocess csv data
 for file in $(echo 'ct-csv\nerfa-csv'); do
-	sed -e 's/"//g' -e 's/\([0-9]\{4,5\}\),/\1 /g' ${file} > tmpfile && mv tmpfile ${file}
+	sed -e 's/"//g' ${file} > tmpfile && mv tmpfile ${file}
+	#~ sed -e 's/\([0-9]\{4,5\}\),/\1 /g' ${file} > tmpfile && mv tmpfile ${file}
 	sed '1d' ${file} > tmpfile && mv tmpfile ${file}
 done
 # dependencies
 
-pip3 install geopy # looking up addresses/coordinates
-pip3 install folium # leaflet.js with python
+#~ pip3 install geopy # looking up addresses/coordinates
+#~ pip3 install folium # leaflet.js with python