diff --git a/bookend/bookend.ipynb b/bookend/bookend.ipynb
index f6be64f..0e7df22 100644
--- a/bookend/bookend.ipynb
+++ b/bookend/bookend.ipynb
@@ -176,7 +176,7 @@
   {
    "cell_type": "code",
    "execution_count": 110,
-   "id": "06777a4d",
+   "id": "72a0bbbc",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -310,7 +310,7 @@
   {
    "cell_type": "code",
    "execution_count": 115,
-   "id": "bce85dbf",
+   "id": "6ee5b89e",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -342,7 +342,7 @@
   {
    "cell_type": "code",
    "execution_count": 116,
-   "id": "9cb7965a",
+   "id": "e55c53d1",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -393,31 +393,19 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 119,
-   "id": "6cf822fb",
+   "execution_count": 120,
+   "id": "95c8782e",
    "metadata": {},
-   "outputs": [
-    {
-     "ename": "NameError",
-     "evalue": "name 'g' is not defined",
-     "output_type": "error",
-     "traceback": [
-      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
-      "\u001b[0;31mNameError\u001b[0m                                 Traceback (most recent call last)",
-      "Cell \u001b[0;32mIn [119], line 2\u001b[0m\n\u001b[1;32m      1\u001b[0m output_file \u001b[38;5;241m=\u001b[39m \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124moutput.ttl\u001b[39m\u001b[38;5;124m\"\u001b[39m\n\u001b[0;32m----> 2\u001b[0m temp \u001b[38;5;241m=\u001b[39m \u001b[43mg\u001b[49m\u001b[38;5;241m.\u001b[39mserialize(\u001b[38;5;28mformat\u001b[39m\u001b[38;5;241m=\u001b[39m\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mturtle\u001b[39m\u001b[38;5;124m\"\u001b[39m, encoding\u001b[38;5;241m=\u001b[39m\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mutf-8\u001b[39m\u001b[38;5;124m\"\u001b[39m, destination\u001b[38;5;241m=\u001b[39moutput_file)\n",
-      "\u001b[0;31mNameError\u001b[0m: name 'g' is not defined"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "output_file = \"output.ttl\"\n",
-    "temp = g.serialize(format=\"turtle\", encoding=\"utf-8\", destination=output_file)"
+    "temp = graph.serialize(format=\"turtle\", encoding=\"utf-8\", destination=output_file)"
    ]
   },
   {
    "cell_type": "code",
    "execution_count": 118,
-   "id": "360c8e23",
+   "id": "4fc488fe",
    "metadata": {},
    "outputs": [],
    "source": [
diff --git a/bookend/bookend.ttl b/bookend/bookend.ttl
new file mode 100644
index 0000000..e1eac39
--- /dev/null
+++ b/bookend/bookend.ttl
@@ -0,0 +1,35 @@
+@prefix : <https://polyneme.xyz/bookend#> .
+@prefix owl: <http://www.w3.org/2002/07/owl#> .
+@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix xml: <http://www.w3.org/XML/1998/namespace> .
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix polyr: <https://polyneme.xyz/lod/resource#> .
+@prefix poly-ont: <https://polyneme.xyz/lod/onotlogy#> .
+@base <https://polyneme.xyz/bookend> .
+
+<https://polyneme.xyz/bookend> rdf:type owl:Ontology .
+
+#################################################################
+#    Classes
+#################################################################
+
+###  https://polyneme.xyz/lod/ontology#Person
+<https://polyneme.xyz/lod/ontology#Person> rdf:type owl:Class .
+
+
+#################################################################
+#    Individuals
+#################################################################
+
+###  https://polyneme.xyz/lod/resource#cogan
+polyr:cogan rdf:type owl:NamedIndividual ,
+                     <https://polyneme.xyz/lod/ontology#Person> .
+
+
+###  https://polyneme.xyz/lod/resource#donny
+polyr:donny rdf:type owl:NamedIndividual ,
+                     <https://polyneme.xyz/lod/ontology#Person> .
+
+
+###  Generated by the OWL API (version 4.5.9.2019-02-01T07:24:44Z) https://github.com/owlcs/owlapi