diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP1_currently_offers.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP1_currently_offers.java
index a23cbd0..80bf66b 100644
--- a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP1_currently_offers.java
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP1_currently_offers.java
@@ -1,20 +1,8 @@
 package org.gcube.informationsystem.parthenos.model.relation;
 
-import java.net.URI;
-import java.util.Collection;
-import javax.xml.datatype.XMLGregorianCalendar;
-
-/**\n * @author Luca Frosini (ISTI - CNR)\n */
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
 public interface PP1_currently_offers extends P9_consists_of {
 
-    /* ***************************************************
-     * Common interfaces
-     */
-
-    OWLNamedIndividual getOwlIndividual();
-
-    OWLOntology getOwlOntology();
-
-    void delete();
-
 }