diff --git a/core/kernel/persistence/starsql/class.Resource.php b/core/kernel/persistence/starsql/class.Resource.php
index 7ef95ca4b..8495c9117 100644
--- a/core/kernel/persistence/starsql/class.Resource.php
+++ b/core/kernel/persistence/starsql/class.Resource.php
@@ -543,22 +543,28 @@ public function getPropertiesValues(core_kernel_classes_Resource $resource, $pro
         foreach ($result->get('resource')->getProperties() as $key => $value) {
             if (in_array($key, $propertyUris)) {
                 if (is_iterable($value)) {
-                    $returnValue[$key] = array_merge(
-                        $returnValue[$key] ?? [],
-                        $this->getLanguageProcessor()->filterByLanguage($value, [$dataLanguage, $defaultLanguage])
-                    );
+                    $returnValue[$key] =
+                        array_map(
+                            fn($value) => $this->formatValue($value),
+                            array_merge(
+                                $returnValue[$key] ?? [],
+                                    $this->getLanguageProcessor()->filterByLanguage(
+                                        $value,
+                                        [$dataLanguage, $defaultLanguage]
+                                    )
+                            )
+                        );
                 } else {
-                    $returnValue[$key][] = common_Utils::isUri($value)
-                        ? $this->getModel()->getResource($value)
-                        : new core_kernel_classes_Literal($this->getLanguageProcessor()->parseTranslatedValue($value));
+                    $returnValue[$key][] = $this->formatValue(
+                        $value,
+                        [$this->getLanguageProcessor(), 'parseTranslatedValue']
+                    );
                 }
             }
         }
         foreach ($result->get('relationships') as $relationship) {
             if (in_array($relationship['relationship'], $propertyUris)) {
-                $returnValue[$relationship['relationship']][] = common_Utils::isUri($relationship['relatedResourceUri'])
-                    ? $this->getModel()->getResource($relationship['relatedResourceUri'])
-                    : new core_kernel_classes_Literal($relationship['relatedResourceUri']);
+                $returnValue[$relationship['relationship']][] = $this->formatValue($relationship['relatedResourceUri']);
             }
         }
 
@@ -639,4 +645,15 @@ private function buildTriplesFromNode(core_kernel_classes_ContainerCollection $t
 
         return $tripleCollection;
     }
+
+    private function formatValue($value, array $literalValueProcessingCallback = [])
+    {
+        return common_Utils::isUri($value) ?
+            $this->getModel()->getResource($value)
+            : new core_kernel_classes_Literal(
+                !empty($literalValueProcessingCallback)
+                    ? call_user_func($literalValueProcessingCallback, $value)
+                    : $value
+            );
+    }
 }