diff --git a/Arrangement_on_surface_2/demo/earth/Aos.cpp b/Arrangement_on_surface_2/demo/earth/Aos.cpp
index ee409c33631..151bbfae77c 100644
--- a/Arrangement_on_surface_2/demo/earth/Aos.cpp
+++ b/Arrangement_on_surface_2/demo/earth/Aos.cpp
@@ -1121,6 +1121,8 @@ void Aos::save_arr(Kml::Placemarks& placemarks, const std::string& file_name)
     json js_face;
     auto face_name = face_name_map[fh];
     js_face["name"] = face_name;
+    js_face["is_unbounded"] = false;
+    js_face["is_valid"] = true;
 
     // at this point we are sure that we have at least 1 outer-ccb
     auto& js_outer_ccbs = js_face["outer_ccbs"] = json::array();
diff --git a/Arrangement_on_surface_2/demo/earth/Kml_reader.cpp b/Arrangement_on_surface_2/demo/earth/Kml_reader.cpp
index a705970ece6..6ecb5d047a2 100644
--- a/Arrangement_on_surface_2/demo/earth/Kml_reader.cpp
+++ b/Arrangement_on_surface_2/demo/earth/Kml_reader.cpp
@@ -408,6 +408,16 @@ Kml::Nodes Kml::Placemark::get_all_nodes() const
 
   return all_nodes;
 }
+int Kml::Placemark::get_all_nodes_count() const
+{
+  int num_nodes = 0;
+  for (const auto& polygon : polygons)
+  {
+    auto polygon_nodes = polygon.get_all_nodes();
+    num_nodes += polygon_nodes.size();
+  }
+  return num_nodes;
+}
 
 Kml::Arcs Kml::LinearRing::get_arcs() const
 {
diff --git a/Arrangement_on_surface_2/demo/earth/Kml_reader.h b/Arrangement_on_surface_2/demo/earth/Kml_reader.h
index 2c36f9a5470..73477e75063 100644
--- a/Arrangement_on_surface_2/demo/earth/Kml_reader.h
+++ b/Arrangement_on_surface_2/demo/earth/Kml_reader.h
@@ -77,6 +77,7 @@ public:
 
     // collects all nodes from all polygons
     Nodes get_all_nodes() const;
+    int get_all_nodes_count() const;
 
     Arcs get_all_arcs() const;
   };
diff --git a/Arrangement_on_surface_2/demo/earth/Main_widget.cpp b/Arrangement_on_surface_2/demo/earth/Main_widget.cpp
index b05c137bfef..14b3b71d526 100644
--- a/Arrangement_on_surface_2/demo/earth/Main_widget.cpp
+++ b/Arrangement_on_surface_2/demo/earth/Main_widget.cpp
@@ -178,8 +178,29 @@ void Main_widget::initializeGL()
 
   //const auto file_name = data_path + "world_countries.kml";
   //const auto file_name = data_path + "ne_110m_admin_0_countries.kml";
-  const auto file_name = data_path + "ne_110m_admin_0_countries_africa_1.kml";
+  //const auto file_name = data_path + "ne_110m_admin_0_countries_africa_1.kml";
+  const auto file_name = data_path + "ne_110m_admin_0_countries_equatorial_guinea.kml";
   m_countries = Kml::read(file_name);
+  
+  // find the country with the least number of nodes
+  if(0)
+  {
+    std::string smallest;
+    int min_num_nodes = std::numeric_limits<int>::max();
+    for (auto& p : m_countries)
+    {
+      int num_nodes = p.get_all_nodes_count();
+      if (min_num_nodes > num_nodes)
+      {
+        min_num_nodes = num_nodes;
+        smallest = p.name;
+      }
+      qDebug() << p.name << " = " << p.get_all_nodes_count();
+    }
+    qDebug() << "smallest = " << smallest;
+    exit(0);
+  }
+  
   auto dup_nodes = Kml::get_duplicates(m_countries);
   //auto all_nodes = Kml::generate_ids(m_countries);
   qDebug() << "*** KML number of polygons = " << 
@@ -193,7 +214,8 @@ void Main_widget::initializeGL()
   // SAVING & LOADING ARR
   if(1)
   {
-    Aos::save_arr(m_countries, "C:/work/gsoc2023/ne_110m_admin_0_countries_africa_1.json");
+    //Aos::save_arr(m_countries, "C:/work/gsoc2023/ne_110m_admin_0_countries_africa_1.json");
+    Aos::save_arr(m_countries, "C:/work/gsoc2023/ne_110m_admin_0_countries_equatorial_guinea.json");
     qDebug() << "done saving!";
     exit(0);
     //Aos::save_arr(m_countries, "C:/work/gsoc2023/ne_110m_admin_0_countries.json");