Replace OcConceptScheme + Add graph to distribution SparQL query

src/declarations.ts

@@ -151,6 +151,11 @@ export type OcConcept = {
   narrower?: string[]
 }
 
+export type OcConceptScheme = {
+  '@id': string
+  prefLabel: LocalizedProperty<string>
+}
+
 export type OcGeometry = {
   '@id'?: string
   geometry: Array<{ '@type': string; '@value': string }>

src/sparql/distribution.ts

@@ -129,11 +129,15 @@ export async function getDistribution(
     `
     CONSTRUCT {
       ?distribution ?p ?o.
+      ?distribution oct:graph ?g.
     }
     WHERE {
-      ?distribution a dcat:Distribution;
-        ?p ?o.
-      ?distribution dct:identifier ?identifier.
+      ?distribution ?p ?o;
+        a dcat:Distribution.
+
+      GRAPH ?g {
+        ?distribution dct:identifier ?identifier.
+      }
       FILTER (str(?identifier) = "${identifier}").
     }