diff --git a/gcbo-base.json b/gcbo-base.json
new file mode 100644
index 0000000..826b84f
--- /dev/null
+++ b/gcbo-base.json
@@ -0,0 +1,29 @@
+{
+  "graphs" : [ {
+    "id" : "https://github.com/bmir-radx/gcbo/gcbo/gcbo-base.json",
+    "meta" : {
+      "basicPropertyValues" : [ {
+        "pred" : "http://purl.org/dc/elements/1.1/type",
+        "val" : "http://purl.obolibrary.org/obo/IAO_8000001"
+      }, {
+        "pred" : "http://purl.org/dc/terms/description",
+        "val" : "None"
+      }, {
+        "pred" : "http://purl.org/dc/terms/license",
+        "val" : "https://creativecommons.org/licenses/unspecified"
+      }, {
+        "pred" : "http://purl.org/dc/terms/title",
+        "val" : "Global Code Book Ontology"
+      }, {
+        "pred" : "http://www.w3.org/2002/07/owl#versionInfo",
+        "val" : "2024-04-16"
+      } ],
+      "version" : "https://github.com/bmir-radx/gcbo/gcbo/releases/2024-04-16/gcbo-base.json"
+    },
+    "nodes" : [ {
+      "id" : "https://github.com/bmir-radx/gcbo/GCBO_0000000",
+      "lbl" : "root node",
+      "type" : "CLASS"
+    } ]
+  } ]
+}
\ No newline at end of file
diff --git a/gcbo-base.obo b/gcbo-base.obo
new file mode 100644
index 0000000..eb7be58
--- /dev/null
+++ b/gcbo-base.obo
@@ -0,0 +1,13 @@
+format-version: 1.2
+data-version: https://github.com/bmir-radx/gcbo/gcbo/releases/2024-04-16/gcbo-base.owl
+ontology: https://github.com/bmir-radx/gcbo/gcbo/gcbo-base.owl
+property_value: http://purl.org/dc/elements/1.1/type IAO:8000001
+property_value: http://purl.org/dc/terms/description "None" xsd:string
+property_value: http://purl.org/dc/terms/license https://creativecommons.org/licenses/unspecified
+property_value: http://purl.org/dc/terms/title "Global Code Book Ontology" xsd:string
+property_value: owl:versionInfo "2024-04-16" xsd:string
+
+[Term]
+id: GCBO:0000000
+name: root node
+
diff --git a/gcbo-base.owl b/gcbo-base.owl
new file mode 100644
index 0000000..7b64c7f
--- /dev/null
+++ b/gcbo-base.owl
@@ -0,0 +1,78 @@
+<?xml version="1.0"?>
+<rdf:RDF xmlns="https://github.com/bmir-radx/gcbo/gcbo/gcbo-base.owl#"
+     xml:base="https://github.com/bmir-radx/gcbo/gcbo/gcbo-base.owl"
+     xmlns:dce="http://purl.org/dc/elements/1.1/"
+     xmlns:owl="http://www.w3.org/2002/07/owl#"
+     xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:xml="http://www.w3.org/XML/1998/namespace"
+     xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
+     xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
+     xmlns:dcterms="http://purl.org/dc/terms/">
+    <owl:Ontology rdf:about="https://github.com/bmir-radx/gcbo/gcbo/gcbo-base.owl">
+        <owl:versionIRI rdf:resource="https://github.com/bmir-radx/gcbo/gcbo/releases/2024-04-16/gcbo-base.owl"/>
+        <dce:type rdf:resource="http://purl.obolibrary.org/obo/IAO_8000001"/>
+        <dcterms:description>None</dcterms:description>
+        <dcterms:license rdf:resource="https://creativecommons.org/licenses/unspecified"/>
+        <dcterms:title>Global Code Book Ontology</dcterms:title>
+        <owl:versionInfo>2024-04-16</owl:versionInfo>
+    </owl:Ontology>
+    
+
+
+    <!-- 
+    ///////////////////////////////////////////////////////////////////////////////////////
+    //
+    // Annotation properties
+    //
+    ///////////////////////////////////////////////////////////////////////////////////////
+     -->
+
+    
+
+
+    <!-- http://purl.org/dc/elements/1.1/type -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/elements/1.1/type"/>
+    
+
+
+    <!-- http://purl.org/dc/terms/description -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/terms/description"/>
+    
+
+
+    <!-- http://purl.org/dc/terms/license -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/terms/license"/>
+    
+
+
+    <!-- http://purl.org/dc/terms/title -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/terms/title"/>
+    
+
+
+    <!-- 
+    ///////////////////////////////////////////////////////////////////////////////////////
+    //
+    // Classes
+    //
+    ///////////////////////////////////////////////////////////////////////////////////////
+     -->
+
+    
+
+
+    <!-- https://github.com/bmir-radx/gcbo/GCBO_0000000 -->
+
+    <owl:Class rdf:about="https://github.com/bmir-radx/gcbo/GCBO_0000000">
+        <rdfs:label xml:lang="en">root node</rdfs:label>
+    </owl:Class>
+</rdf:RDF>
+
+
+
+<!-- Generated by the OWL API (version 4.5.26) https://github.com/owlcs/owlapi -->
+
diff --git a/gcbo-full.json b/gcbo-full.json
new file mode 100644
index 0000000..4b7dfe7
--- /dev/null
+++ b/gcbo-full.json
@@ -0,0 +1,38 @@
+{
+  "graphs" : [ {
+    "id" : "https://github.com/bmir-radx/gcbo/gcbo/gcbo-full.json",
+    "meta" : {
+      "basicPropertyValues" : [ {
+        "pred" : "http://purl.org/dc/terms/description",
+        "val" : "None"
+      }, {
+        "pred" : "http://purl.org/dc/terms/license",
+        "val" : "https://creativecommons.org/licenses/unspecified"
+      }, {
+        "pred" : "http://purl.org/dc/terms/title",
+        "val" : "Global Code Book Ontology"
+      }, {
+        "pred" : "http://www.w3.org/2002/07/owl#versionInfo",
+        "val" : "2024-04-16"
+      } ],
+      "version" : "https://github.com/bmir-radx/gcbo/gcbo/releases/2024-04-16/gcbo-full.json"
+    },
+    "nodes" : [ {
+      "id" : "http://purl.org/dc/terms/description",
+      "lbl" : "description",
+      "type" : "PROPERTY"
+    }, {
+      "id" : "http://purl.org/dc/terms/license",
+      "lbl" : "license",
+      "type" : "PROPERTY"
+    }, {
+      "id" : "http://purl.org/dc/terms/title",
+      "lbl" : "title",
+      "type" : "PROPERTY"
+    }, {
+      "id" : "https://github.com/bmir-radx/gcbo/GCBO_0000000",
+      "lbl" : "root node",
+      "type" : "CLASS"
+    } ]
+  } ]
+}
\ No newline at end of file
diff --git a/gcbo-full.obo b/gcbo-full.obo
new file mode 100644
index 0000000..6a1116f
--- /dev/null
+++ b/gcbo-full.obo
@@ -0,0 +1,12 @@
+format-version: 1.2
+data-version: https://github.com/bmir-radx/gcbo/gcbo/releases/2024-04-16/gcbo-full.owl
+ontology: https://github.com/bmir-radx/gcbo/gcbo/gcbo-full.owl
+property_value: http://purl.org/dc/terms/description "None" xsd:string
+property_value: http://purl.org/dc/terms/license https://creativecommons.org/licenses/unspecified
+property_value: http://purl.org/dc/terms/title "Global Code Book Ontology" xsd:string
+property_value: owl:versionInfo "2024-04-16" xsd:string
+
+[Term]
+id: GCBO:0000000
+name: root node
+
diff --git a/gcbo-full.owl b/gcbo-full.owl
new file mode 100644
index 0000000..8bea8f4
--- /dev/null
+++ b/gcbo-full.owl
@@ -0,0 +1,127 @@
+<?xml version="1.0"?>
+<rdf:RDF xmlns="https://github.com/bmir-radx/gcbo/gcbo/gcbo-full.owl#"
+     xml:base="https://github.com/bmir-radx/gcbo/gcbo/gcbo-full.owl"
+     xmlns:dce="http://purl.org/dc/elements/1.1/"
+     xmlns:obo="http://purl.obolibrary.org/obo/"
+     xmlns:owl="http://www.w3.org/2002/07/owl#"
+     xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:xml="http://www.w3.org/XML/1998/namespace"
+     xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
+     xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
+     xmlns:dcterms="http://purl.org/dc/terms/"
+     xmlns:oboInOwl="http://www.geneontology.org/formats/oboInOwl#">
+    <owl:Ontology rdf:about="https://github.com/bmir-radx/gcbo/gcbo/gcbo-full.owl">
+        <owl:versionIRI rdf:resource="https://github.com/bmir-radx/gcbo/gcbo/releases/2024-04-16/gcbo-full.owl"/>
+        <dcterms:description>None</dcterms:description>
+        <dcterms:license rdf:resource="https://creativecommons.org/licenses/unspecified"/>
+        <dcterms:title>Global Code Book Ontology</dcterms:title>
+        <owl:versionInfo>2024-04-16</owl:versionInfo>
+    </owl:Ontology>
+    
+
+
+    <!-- 
+    ///////////////////////////////////////////////////////////////////////////////////////
+    //
+    // Annotation properties
+    //
+    ///////////////////////////////////////////////////////////////////////////////////////
+     -->
+
+    
+
+
+    <!-- http://purl.obolibrary.org/obo/IAO_0000700 -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.obolibrary.org/obo/IAO_0000700"/>
+    
+
+
+    <!-- http://purl.org/dc/elements/1.1/description -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/elements/1.1/description"/>
+    
+
+
+    <!-- http://purl.org/dc/elements/1.1/source -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/elements/1.1/source"/>
+    
+
+
+    <!-- http://purl.org/dc/elements/1.1/title -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/elements/1.1/title"/>
+    
+
+
+    <!-- http://purl.org/dc/terms/description -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/terms/description">
+        <rdfs:label>description</rdfs:label>
+    </owl:AnnotationProperty>
+    
+
+
+    <!-- http://purl.org/dc/terms/license -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/terms/license">
+        <rdfs:label>license</rdfs:label>
+    </owl:AnnotationProperty>
+    
+
+
+    <!-- http://purl.org/dc/terms/title -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/terms/title">
+        <rdfs:label>title</rdfs:label>
+    </owl:AnnotationProperty>
+    
+
+
+    <!-- http://www.geneontology.org/formats/oboInOwl#date -->
+
+    <owl:AnnotationProperty rdf:about="http://www.geneontology.org/formats/oboInOwl#date"/>
+    
+
+
+    <!-- http://www.geneontology.org/formats/oboInOwl#default-namespace -->
+
+    <owl:AnnotationProperty rdf:about="http://www.geneontology.org/formats/oboInOwl#default-namespace"/>
+    
+
+
+    <!-- http://www.geneontology.org/formats/oboInOwl#hasOBOFormatVersion -->
+
+    <owl:AnnotationProperty rdf:about="http://www.geneontology.org/formats/oboInOwl#hasOBOFormatVersion"/>
+    
+
+
+    <!-- http://www.geneontology.org/formats/oboInOwl#saved-by -->
+
+    <owl:AnnotationProperty rdf:about="http://www.geneontology.org/formats/oboInOwl#saved-by"/>
+    
+
+
+    <!-- 
+    ///////////////////////////////////////////////////////////////////////////////////////
+    //
+    // Classes
+    //
+    ///////////////////////////////////////////////////////////////////////////////////////
+     -->
+
+    
+
+
+    <!-- https://github.com/bmir-radx/gcbo/GCBO_0000000 -->
+
+    <owl:Class rdf:about="https://github.com/bmir-radx/gcbo/GCBO_0000000">
+        <rdfs:label xml:lang="en">root node</rdfs:label>
+    </owl:Class>
+</rdf:RDF>
+
+
+
+<!-- Generated by the OWL API (version 4.5.26) https://github.com/owlcs/owlapi -->
+
diff --git a/gcbo-simple.json b/gcbo-simple.json
new file mode 100644
index 0000000..6d361f1
--- /dev/null
+++ b/gcbo-simple.json
@@ -0,0 +1,38 @@
+{
+  "graphs" : [ {
+    "id" : "https://github.com/bmir-radx/gcbo/gcbo/gcbo-simple.json",
+    "meta" : {
+      "basicPropertyValues" : [ {
+        "pred" : "http://purl.org/dc/terms/description",
+        "val" : "None"
+      }, {
+        "pred" : "http://purl.org/dc/terms/license",
+        "val" : "https://creativecommons.org/licenses/unspecified"
+      }, {
+        "pred" : "http://purl.org/dc/terms/title",
+        "val" : "Global Code Book Ontology"
+      }, {
+        "pred" : "http://www.w3.org/2002/07/owl#versionInfo",
+        "val" : "2024-04-16"
+      } ],
+      "version" : "https://github.com/bmir-radx/gcbo/gcbo/releases/2024-04-16/gcbo-simple.json"
+    },
+    "nodes" : [ {
+      "id" : "http://purl.org/dc/terms/description",
+      "lbl" : "description",
+      "type" : "PROPERTY"
+    }, {
+      "id" : "http://purl.org/dc/terms/license",
+      "lbl" : "license",
+      "type" : "PROPERTY"
+    }, {
+      "id" : "http://purl.org/dc/terms/title",
+      "lbl" : "title",
+      "type" : "PROPERTY"
+    }, {
+      "id" : "https://github.com/bmir-radx/gcbo/GCBO_0000000",
+      "lbl" : "root node",
+      "type" : "CLASS"
+    } ]
+  } ]
+}
\ No newline at end of file
diff --git a/gcbo-simple.obo b/gcbo-simple.obo
new file mode 100644
index 0000000..e7d216a
--- /dev/null
+++ b/gcbo-simple.obo
@@ -0,0 +1,12 @@
+format-version: 1.2
+data-version: https://github.com/bmir-radx/gcbo/gcbo/releases/2024-04-16/gcbo-simple.owl
+ontology: https://github.com/bmir-radx/gcbo/gcbo/gcbo-simple.owl
+property_value: http://purl.org/dc/terms/description "None" xsd:string
+property_value: http://purl.org/dc/terms/license https://creativecommons.org/licenses/unspecified
+property_value: http://purl.org/dc/terms/title "Global Code Book Ontology" xsd:string
+property_value: owl:versionInfo "2024-04-16" xsd:string
+
+[Term]
+id: GCBO:0000000
+name: root node
+
diff --git a/gcbo-simple.owl b/gcbo-simple.owl
new file mode 100644
index 0000000..ab0e2fd
--- /dev/null
+++ b/gcbo-simple.owl
@@ -0,0 +1,76 @@
+<?xml version="1.0"?>
+<rdf:RDF xmlns="https://github.com/bmir-radx/gcbo/gcbo/gcbo-simple.owl#"
+     xml:base="https://github.com/bmir-radx/gcbo/gcbo/gcbo-simple.owl"
+     xmlns:owl="http://www.w3.org/2002/07/owl#"
+     xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:xml="http://www.w3.org/XML/1998/namespace"
+     xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
+     xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
+     xmlns:terms="http://purl.org/dc/terms/">
+    <owl:Ontology rdf:about="https://github.com/bmir-radx/gcbo/gcbo/gcbo-simple.owl">
+        <owl:versionIRI rdf:resource="https://github.com/bmir-radx/gcbo/gcbo/releases/2024-04-16/gcbo-simple.owl"/>
+        <terms:description>None</terms:description>
+        <terms:license rdf:resource="https://creativecommons.org/licenses/unspecified"/>
+        <terms:title>Global Code Book Ontology</terms:title>
+        <owl:versionInfo>2024-04-16</owl:versionInfo>
+    </owl:Ontology>
+    
+
+
+    <!-- 
+    ///////////////////////////////////////////////////////////////////////////////////////
+    //
+    // Annotation properties
+    //
+    ///////////////////////////////////////////////////////////////////////////////////////
+     -->
+
+    
+
+
+    <!-- http://purl.org/dc/terms/description -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/terms/description">
+        <rdfs:label>description</rdfs:label>
+    </owl:AnnotationProperty>
+    
+
+
+    <!-- http://purl.org/dc/terms/license -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/terms/license">
+        <rdfs:label>license</rdfs:label>
+    </owl:AnnotationProperty>
+    
+
+
+    <!-- http://purl.org/dc/terms/title -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/terms/title">
+        <rdfs:label>title</rdfs:label>
+    </owl:AnnotationProperty>
+    
+
+
+    <!-- 
+    ///////////////////////////////////////////////////////////////////////////////////////
+    //
+    // Classes
+    //
+    ///////////////////////////////////////////////////////////////////////////////////////
+     -->
+
+    
+
+
+    <!-- https://github.com/bmir-radx/gcbo/GCBO_0000000 -->
+
+    <owl:Class rdf:about="https://github.com/bmir-radx/gcbo/GCBO_0000000">
+        <rdfs:label xml:lang="en">root node</rdfs:label>
+    </owl:Class>
+</rdf:RDF>
+
+
+
+<!-- Generated by the OWL API (version 4.5.26) https://github.com/owlcs/owlapi -->
+
diff --git a/gcbo.json b/gcbo.json
new file mode 100644
index 0000000..f09e676
--- /dev/null
+++ b/gcbo.json
@@ -0,0 +1,38 @@
+{
+  "graphs" : [ {
+    "id" : "https://github.com/bmir-radx/gcbo/gcbo.json",
+    "meta" : {
+      "basicPropertyValues" : [ {
+        "pred" : "http://purl.org/dc/terms/description",
+        "val" : "None"
+      }, {
+        "pred" : "http://purl.org/dc/terms/license",
+        "val" : "https://creativecommons.org/licenses/unspecified"
+      }, {
+        "pred" : "http://purl.org/dc/terms/title",
+        "val" : "Global Code Book Ontology"
+      }, {
+        "pred" : "http://www.w3.org/2002/07/owl#versionInfo",
+        "val" : "2024-04-16"
+      } ],
+      "version" : "https://github.com/bmir-radx/gcbo/gcbo/releases/2024-04-16/gcbo.json"
+    },
+    "nodes" : [ {
+      "id" : "http://purl.org/dc/terms/description",
+      "lbl" : "description",
+      "type" : "PROPERTY"
+    }, {
+      "id" : "http://purl.org/dc/terms/license",
+      "lbl" : "license",
+      "type" : "PROPERTY"
+    }, {
+      "id" : "http://purl.org/dc/terms/title",
+      "lbl" : "title",
+      "type" : "PROPERTY"
+    }, {
+      "id" : "https://github.com/bmir-radx/gcbo/GCBO_0000000",
+      "lbl" : "root node",
+      "type" : "CLASS"
+    } ]
+  } ]
+}
\ No newline at end of file
diff --git a/gcbo.obo b/gcbo.obo
new file mode 100644
index 0000000..78d89a8
--- /dev/null
+++ b/gcbo.obo
@@ -0,0 +1,12 @@
+format-version: 1.2
+data-version: https://github.com/bmir-radx/gcbo/gcbo/releases/2024-04-16/gcbo.owl
+ontology: https://github.com/bmir-radx/gcbo/gcbo.owl
+property_value: http://purl.org/dc/terms/description "None" xsd:string
+property_value: http://purl.org/dc/terms/license https://creativecommons.org/licenses/unspecified
+property_value: http://purl.org/dc/terms/title "Global Code Book Ontology" xsd:string
+property_value: owl:versionInfo "2024-04-16" xsd:string
+
+[Term]
+id: GCBO:0000000
+name: root node
+
diff --git a/gcbo.owl b/gcbo.owl
new file mode 100644
index 0000000..5e6f6c5
--- /dev/null
+++ b/gcbo.owl
@@ -0,0 +1,127 @@
+<?xml version="1.0"?>
+<rdf:RDF xmlns="https://github.com/bmir-radx/gcbo/gcbo.owl#"
+     xml:base="https://github.com/bmir-radx/gcbo/gcbo.owl"
+     xmlns:dce="http://purl.org/dc/elements/1.1/"
+     xmlns:obo="http://purl.obolibrary.org/obo/"
+     xmlns:owl="http://www.w3.org/2002/07/owl#"
+     xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+     xmlns:xml="http://www.w3.org/XML/1998/namespace"
+     xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
+     xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
+     xmlns:dcterms="http://purl.org/dc/terms/"
+     xmlns:oboInOwl="http://www.geneontology.org/formats/oboInOwl#">
+    <owl:Ontology rdf:about="https://github.com/bmir-radx/gcbo/gcbo.owl">
+        <owl:versionIRI rdf:resource="https://github.com/bmir-radx/gcbo/gcbo/releases/2024-04-16/gcbo.owl"/>
+        <dcterms:description>None</dcterms:description>
+        <dcterms:license rdf:resource="https://creativecommons.org/licenses/unspecified"/>
+        <dcterms:title>Global Code Book Ontology</dcterms:title>
+        <owl:versionInfo>2024-04-16</owl:versionInfo>
+    </owl:Ontology>
+    
+
+
+    <!-- 
+    ///////////////////////////////////////////////////////////////////////////////////////
+    //
+    // Annotation properties
+    //
+    ///////////////////////////////////////////////////////////////////////////////////////
+     -->
+
+    
+
+
+    <!-- http://purl.obolibrary.org/obo/IAO_0000700 -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.obolibrary.org/obo/IAO_0000700"/>
+    
+
+
+    <!-- http://purl.org/dc/elements/1.1/description -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/elements/1.1/description"/>
+    
+
+
+    <!-- http://purl.org/dc/elements/1.1/source -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/elements/1.1/source"/>
+    
+
+
+    <!-- http://purl.org/dc/elements/1.1/title -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/elements/1.1/title"/>
+    
+
+
+    <!-- http://purl.org/dc/terms/description -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/terms/description">
+        <rdfs:label>description</rdfs:label>
+    </owl:AnnotationProperty>
+    
+
+
+    <!-- http://purl.org/dc/terms/license -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/terms/license">
+        <rdfs:label>license</rdfs:label>
+    </owl:AnnotationProperty>
+    
+
+
+    <!-- http://purl.org/dc/terms/title -->
+
+    <owl:AnnotationProperty rdf:about="http://purl.org/dc/terms/title">
+        <rdfs:label>title</rdfs:label>
+    </owl:AnnotationProperty>
+    
+
+
+    <!-- http://www.geneontology.org/formats/oboInOwl#date -->
+
+    <owl:AnnotationProperty rdf:about="http://www.geneontology.org/formats/oboInOwl#date"/>
+    
+
+
+    <!-- http://www.geneontology.org/formats/oboInOwl#default-namespace -->
+
+    <owl:AnnotationProperty rdf:about="http://www.geneontology.org/formats/oboInOwl#default-namespace"/>
+    
+
+
+    <!-- http://www.geneontology.org/formats/oboInOwl#hasOBOFormatVersion -->
+
+    <owl:AnnotationProperty rdf:about="http://www.geneontology.org/formats/oboInOwl#hasOBOFormatVersion"/>
+    
+
+
+    <!-- http://www.geneontology.org/formats/oboInOwl#saved-by -->
+
+    <owl:AnnotationProperty rdf:about="http://www.geneontology.org/formats/oboInOwl#saved-by"/>
+    
+
+
+    <!-- 
+    ///////////////////////////////////////////////////////////////////////////////////////
+    //
+    // Classes
+    //
+    ///////////////////////////////////////////////////////////////////////////////////////
+     -->
+
+    
+
+
+    <!-- https://github.com/bmir-radx/gcbo/GCBO_0000000 -->
+
+    <owl:Class rdf:about="https://github.com/bmir-radx/gcbo/GCBO_0000000">
+        <rdfs:label xml:lang="en">root node</rdfs:label>
+    </owl:Class>
+</rdf:RDF>
+
+
+
+<!-- Generated by the OWL API (version 4.5.26) https://github.com/owlcs/owlapi -->
+