diff --git a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_collection_data_template.sparql b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_collection_data_template.sparql
index 928cc74..acefa14 100644
--- a/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_collection_data_template.sparql
+++ b/dnet-ariadneplus-graphdb-publisher/src/main/resources/eu/dnetlib/ariadneplus/sparql/read_collection_data_template.sparql
@@ -41,13 +41,11 @@ CONSTRUCT {
 ?spatialRegionBox aoprop:boxMaxLon ?spatialLocationBBMaxLon .
 ?spatialRegionBox aoprop:boxMinLat ?spatialLocationBBMinLat .
 ?spatialRegionBox aoprop:boxMinLon ?spatialLocationBBMinLon .
-%record aoprop:uri ?temporal .
-?temporal aoprop:periodName ?temporalPeriodName .
-?temporal aoprop:from ?temporalFrom .
-?temporal aoprop:until ?temporalUntil .
-?temporal aoprop:uri ?temporal .
 %record aoprop:uri ?temporalNative .
 ?temporalNative aoprop:periodName ?temporalNativePeriodName .
+?temporalNative aoprop:from ?temporalFrom .
+?temporalNative aoprop:until ?temporalUntil .
+?temporalNative aoprop:uri ?temporalNative .
 %record aoprop:archeologicalResourceType ?archeologicalResourceType .
 ?archeologicalResourceType aoprop:name ?archeologicalResourceTypeName .
 %record aoprop:resourceType ?resourceType .
@@ -101,15 +99,12 @@ where {
         	%record aocat:has_landing_page / rdfs:label ?landingPage .
         }
         optional {
-            %record aocat:has_temporal_coverage  ?temporalNative .
-            ?temporalNative aocat:has_native_period / skos:prefLabel ?temporalNativePeriodName .
-        }
-        optional {
-            %record aocat:has_temporal_coverage ?temporal .
-            ?temporal aocat:has_period / skos:prefLabel ?temporalPeriodName .
+            %record aocat:has_temporal_coverage  ?temporalCoverage .
+            ?temporalCoverage aocat:has_native_period ?temporalNative .
+            ?temporalNative skos:prefLabel ?temporalNativePeriodName .
             optional {
-                ?temporal aocat:from ?temporalFrom .
-                ?temporal aocat:until ?temporalUntil .
+            ?temporalNative aocat:from ?temporalFrom .
+            ?temporalNative aocat:until ?temporalUntil .
             }
         }