Fix: Add Coscine Graph

src/SQL2Linked/Implementations/ProjectStructuralData.cs

@@ -43,6 +43,14 @@ namespace SQL2Linked.Implementations
             var projectUrlPrefix = "https://purl.org/coscine/projects";
             var resourceUrlPrefix = "https://purl.org/coscine/resources";
 
+            var coscineGraph = new Graph
+            {
+                BaseUri = cosc
+            };
+            AssertToGraphUriNode(coscineGraph, cosc.AbsoluteUri, dcat + "catalog", projectUrlPrefix + "/");
+            AssertToGraphUriNode(coscineGraph, cosc.AbsoluteUri, dcat + "catalog", resourceUrlPrefix + "/");
+            graphs.Add(coscineGraph);
+
             foreach (var entry in entries)
             {
                 var projectGraphName = $"{projectUrlPrefix}/{entry.Id}";