diff --git a/.gitignore b/.gitignore
index 8062951..e0235b5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -183,3 +183,5 @@ listevent.xml
 relations.csv
 hansi.*
 media/relations.gexf
+edges.csv
+nodes.csv
diff --git a/apis_core/apis_entities/models.py b/apis_core/apis_entities/models.py
index 9efe364..6e4870d 100644
--- a/apis_core/apis_entities/models.py
+++ b/apis_core/apis_entities/models.py
@@ -528,6 +528,10 @@ def get_api_url(self):
     def get_icon(self):
         return "bi bi-people apis-person"
 
+    @classmethod
+    def get_color(self):
+        return "#720e07"
+
 
 class Place(AbstractEntity):
     kind = models.ForeignKey(
@@ -559,6 +563,10 @@ def get_api_url(self):
     def get_icon(self):
         return "bi bi-map apis-place"
 
+    @classmethod
+    def get_color(self):
+        return "#5bc0eb"
+
 
 class Institution(AbstractEntity):
     kind = models.ForeignKey(
@@ -582,6 +590,10 @@ def get_api_url(self):
     def get_icon(self):
         return "bi bi-building-gear apis-institution"
 
+    @classmethod
+    def get_color(self):
+        return "#1d3461"
+
 
 class Event(AbstractEntity):
     kind = models.ForeignKey(
@@ -605,6 +617,10 @@ def get_api_url(self):
     def get_icon(self):
         return "bi bi-calendar3 apis-event"
 
+    @classmethod
+    def get_color(self):
+        return "#9bc53d"
+
 
 class Work(AbstractEntity):
     kind = models.ForeignKey(WorkType, blank=True, null=True, on_delete=models.SET_NULL)
@@ -626,6 +642,10 @@ def get_api_url(self):
     def get_icon(self):
         return "bi bi-book apis-work"
 
+    @classmethod
+    def get_color(self):
+        return "#ff8600"
+
 
 a_ents = getattr(settings, "APIS_ADDITIONAL_ENTITIES", False)
 
diff --git a/apis_core/apis_relations/management/commands/dump_relations.py b/apis_core/apis_relations/management/commands/dump_relations.py
index 5eb777a..14d79dc 100644
--- a/apis_core/apis_relations/management/commands/dump_relations.py
+++ b/apis_core/apis_relations/management/commands/dump_relations.py
@@ -43,7 +43,13 @@ def handle(self, *args: Any, **options: Any) -> str | None:
         df.set_index("relation_pk", inplace=True, drop=False)
         indexer = recordlinkage.Index()
         indexer.block(
-            ["relation_type", "source_id", "target_id", "start_date", "end_date"]
+            [
+                "relation_type",
+                "source_id",
+                "target_id",
+                "relation_start_date_written",
+                "relation_end_date_written",
+            ]
         )
         duplicates = indexer.index(df)
         print(f"deleting {len(duplicates)} duplicated relations")
@@ -71,7 +77,6 @@ def handle(self, *args: Any, **options: Any) -> str | None:
         except Exception as e:
             ic(e)
         print("and now serialize relations as network graph")
-        colors = settings.PMB_COLORS
         G = nx.Graph()
         for i, row in tqdm(df.iterrows(), total=len(df)):
             G.add_nodes_from(
@@ -81,7 +86,7 @@ def handle(self, *args: Any, **options: Any) -> str | None:
                         {
                             "label": row["source"],
                             "type": row["source_type"],
-                            "color": colors[row["source_type"]],
+                            "color": row["source_color"],
                         },
                     )
                 ]
@@ -93,7 +98,7 @@ def handle(self, *args: Any, **options: Any) -> str | None:
                         {
                             "label": row["target"],
                             "type": row["target_type"],
-                            "color": colors[row["target_type"]],
+                            "color": row["target_color"],
                         },
                     )
                 ]
diff --git a/apis_core/apis_relations/models.py b/apis_core/apis_relations/models.py
index 06cd335..1578633 100644
--- a/apis_core/apis_relations/models.py
+++ b/apis_core/apis_relations/models.py
@@ -52,14 +52,24 @@ def get_web_object(self):
         result = {
             "relation_pk": self.pk,
             "relation_type": self.relation_type.name,
-            "source": namea,
+            "relation_class": f"{namea._meta.verbose_name} -> {nameb._meta.verbose_name}",
+            "relation_name": self.__str__(),
+            "relation_start_date": f"{self.start_date}",
+            "relation_end_date": f"{self.end_date}",
+            "relation_start_date_written": f"{self.start_date_written}",
+            "relation_end_date_written": f"{self.end_date_written}",
+            "source": namea.__str__(),
             "source_id": namea.id,
             "source_type": namea._meta.verbose_name,
-            "target": nameb,
+            "source_start_date": f"{namea.start_date}",
+            "source_start_date_written": f"{namea.start_date_written}",
+            "source_color": namea.get_color(),
+            "target": nameb.__str__(),
             "target_id": nameb.id,
             "target_type": nameb._meta.verbose_name,
-            "start_date": self.start_date_written,
-            "end_date": self.end_date_written,
+            "target_start_date": f"{nameb.start_date}",
+            "target_start_date_written": f"{nameb.start_date_written}",
+            "target_color": nameb.get_color(),
         }
         return result
 
diff --git a/pmb/settings.py b/pmb/settings.py
index 6b2dd75..0ce631e 100644
--- a/pmb/settings.py
+++ b/pmb/settings.py
@@ -298,12 +298,3 @@
         ],
     },
 }
-
-PMB_COLORS = {
-    "Person": "#720e07",
-    "Ort": "#5bc0eb",
-    "Werk": "#ff8600",
-    "Ereignis": "#9bc53d",
-    "Institution": "#1d3461",
-    "PMB": "#9B5F98",
-}