diff --git a/data/webs/philosophy/knowledge/ambiguity.json b/data/webs/philosophy/knowledge/ambiguity.json
new file mode 100644
index 0000000..9256f7f
--- /dev/null
+++ b/data/webs/philosophy/knowledge/ambiguity.json
@@ -0,0 +1,10 @@
+{
+    "tag" : "ambiguity",
+    "nodes" : {
+        "0" : {
+            "comment" : "The concept of ambiguity",
+            "id" : 0,
+            "name" : "ambiguity"
+        }
+    }
+}
\ No newline at end of file
diff --git a/data/webs/philosophy/knowledge/knowledge.json b/data/webs/philosophy/knowledge/knowledge.json
new file mode 100644
index 0000000..7a09d6b
--- /dev/null
+++ b/data/webs/philosophy/knowledge/knowledge.json
@@ -0,0 +1,23 @@
+{
+    "tag" : "knowledge",
+    "nodes" : {
+        "0" : {
+            "comment" : "The concept of knowledge",
+            "id" : 0,
+            "name" : "knowledge"
+        },
+        "1" : {
+            "comment" : "The concept of the known",
+            "id" : 1,
+            "name" : "known"
+        },
+        "2" : {
+            "comment" : "The concept of the unknown",
+            "id" : 2,
+            "name" : "unknown"
+        }
+    },
+    "dependencies" : [
+        "./data/webs/philosophy/knowledge/ambiguity.json"
+    ]
+}
\ No newline at end of file
diff --git a/data/webs/philosophy/philosophy.json b/data/webs/philosophy/philosophy.json
index 5a8c1d6..93fcbcb 100644
--- a/data/webs/philosophy/philosophy.json
+++ b/data/webs/philosophy/philosophy.json
@@ -2,6 +2,7 @@
     "tag": "philosophy",
     "dependencies" : [
         "./data/webs/philosophy/concept.json",
+        "./data/webs/philosophy/knowledge/knowledge.json",
         "./data/webs/philosophy/person/person.json",
         "./data/webs/philosophy/person/self.json",
         "./data/webs/philosophy/quality/quality.json"
diff --git a/data/webs/physics/physics.json b/data/webs/physics/physics.json
new file mode 100644
index 0000000..f11c969
--- /dev/null
+++ b/data/webs/physics/physics.json
@@ -0,0 +1,6 @@
+{
+    "tag" : "physics",
+    "dependencies" : [
+        
+    ]
+}
\ No newline at end of file
diff --git a/data/webs/root.json b/data/webs/root.json
index b80f408..d88f485 100644
--- a/data/webs/root.json
+++ b/data/webs/root.json
@@ -17,7 +17,8 @@
         }
     },
     "dependencies" : [
+        "./data/webs/philosophy/philosophy.json",
         "./data/webs/linguistics/linguistics.json",
-        "./data/webs/philosophy/philosophy.json"
+        "./data/webs/physics/physics.json"
     ]
 }
\ No newline at end of file
diff --git a/src/main/java/org/studiorailgun/knowledge/Node.java b/src/main/java/org/studiorailgun/knowledge/Node.java
index df50e92..68cbc26 100644
--- a/src/main/java/org/studiorailgun/knowledge/Node.java
+++ b/src/main/java/org/studiorailgun/knowledge/Node.java
@@ -20,6 +20,11 @@ public class Node {
      */
     String name;
 
+    /**
+     * An optional comment on a node
+     */
+    String comment;
+
 
     /**
      * Constructor
@@ -31,16 +36,30 @@ public class Node {
         this.name = name;
     }
 
-
+    /**
+     * Gets the name of the node
+     * @return The name
+     */
     public String getName() {
         return name;
     }
 
-
+    /**
+     * Gets the id of the node
+     * @return The id
+     */
     public int getId() {
         return id;
     }
 
+    /**
+     * Gets the comment on the node
+     * @return The comment
+     */
+    public String getComment(){
+        return comment;
+    }
+
     
 
 }