diff --git a/wiki_relations.py b/wiki_relations.py
index 80e8c9f..7056a71 100644
--- a/wiki_relations.py
+++ b/wiki_relations.py
@@ -4,6 +4,7 @@ import requests
 import argparse
 import datetime
 import tqdm
+import csv
 
 
 
@@ -12,11 +13,12 @@ logger = logging.getLogger('wiki')
 default_categories = [
     # 'Person',
     'Institution',
-    'Technology',
+    'Products',
     'Deployments',
     'Dataset',
     'City',
-    # 'Country',# for deployments without city we should configure Geolocation
+    #'Country',# for deployments without city we should configure Geolocation
+    'Technology Type',
     ]
 
 parser = argparse.ArgumentParser(description='Turn wiki into nodes & links, usable by d3-force.')
@@ -28,6 +30,8 @@ parser.add_argument('--output',  default="semantic_data.json",
                     help='Output JSON file')
 parser.add_argument('--credentials',  default="no_credentials.json",
                     help="JSON file containing the Bot's credentials")
+parser.add_argument('--generate-csv',  action='store_true',
+                    help="generate edge.csv & nodes.csv")
 
 args = parser.parse_args()
 
@@ -257,3 +261,17 @@ if __name__ == "__main__":
     with open(args.output, 'w') as fp:
         json.dump(collection, fp)
 
+    if args.generate_csv:    
+        with open('nodes.csv', 'w') as csvfile:
+            all_keys = set().union(*(d.keys() for d in collection['nodes']))
+            # all_keys = ['@id']
+            dict_writer = csv.DictWriter(csvfile, fieldnames=all_keys, extrasaction='ignore', restval='')
+            dict_writer.writeheader()
+            dict_writer.writerows(collection['nodes'])
+            
+        with open('edges.csv', 'w') as csvfile:
+            all_keys = set().union(*(d.keys() for d in collection['links']))
+            dict_writer = csv.DictWriter(csvfile, fieldnames=all_keys, extrasaction='ignore', restval='')
+            dict_writer.writeheader()
+            dict_writer.writerows(collection['links'])
+            
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