diff --git a/app/src/main/java/com/example/cosmosclient/entities/AreaInformation.java b/app/src/main/java/com/example/cosmosclient/entities/AreaInformation.java
new file mode 100644
index 0000000..2d026b6
--- /dev/null
+++ b/app/src/main/java/com/example/cosmosclient/entities/AreaInformation.java
@@ -0,0 +1,9 @@
+package com.example.cosmosclient.entities;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+public class AreaInformation {
+    public Location location;
+    public HashMap<Integer, ArrayList<Feature>> feature = new HashMap<>();
+}
diff --git a/app/src/main/java/com/example/cosmosclient/entities/Feature.java b/app/src/main/java/com/example/cosmosclient/entities/Feature.java
new file mode 100644
index 0000000..37a6d2c
--- /dev/null
+++ b/app/src/main/java/com/example/cosmosclient/entities/Feature.java
@@ -0,0 +1,7 @@
+package com.example.cosmosclient.entities;
+
+public class Feature {
+    public String name;
+    public int code;
+    public Location location;
+}
diff --git a/app/src/main/java/com/example/cosmosclient/entities/Location.java b/app/src/main/java/com/example/cosmosclient/entities/Location.java
new file mode 100644
index 0000000..6b467c0
--- /dev/null
+++ b/app/src/main/java/com/example/cosmosclient/entities/Location.java
@@ -0,0 +1,10 @@
+package com.example.cosmosclient.entities;
+
+public class Location {
+    public double latitude;
+    public double longitude;
+
+    public int hashCode(){
+        return (int)((latitude+90)/0.1)+(int)((longitude*0.1)*1800);
+    }
+}