diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P106_is_composed_of.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P106_is_composed_of.java
new file mode 100644
index 0000000..ff1c57e
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P106_is_composed_of.java
@@ -0,0 +1,9 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P106_is_composed_of {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P106i_forms_part_of.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P106i_forms_part_of.java
new file mode 100644
index 0000000..02b8d67
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P106i_forms_part_of.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P106i_forms_part_of {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P129_is_about.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P129_is_about.java
new file mode 100644
index 0000000..8f6fe1c
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P129_is_about.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P129_is_about {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P129i_is_subject_of.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P129i_is_subject_of.java
new file mode 100644
index 0000000..3e0aae1
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P129i_is_subject_of.java
@@ -0,0 +1,9 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P129i_is_subject_of {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P130_shows_features_of.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P130_shows_features_of.java
new file mode 100644
index 0000000..6d24302
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P130_shows_features_of.java
@@ -0,0 +1,9 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P130_shows_features_of {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P130i_features_are_also_found_on.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P130i_features_are_also_found_on.java
new file mode 100644
index 0000000..ec76db4
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P130i_features_are_also_found_on.java
@@ -0,0 +1,9 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P130i_features_are_also_found_on {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P14_carried_out_by.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P14_carried_out_by.java
new file mode 100644
index 0000000..c792a6e
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P14_carried_out_by.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P14_carried_out_by {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P14i_performed.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P14i_performed.java
new file mode 100644
index 0000000..f5ea505
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P14i_performed.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P14i_performed {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P15_was_influenced_by.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P15_was_influenced_by.java
new file mode 100644
index 0000000..1f13ae6
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P15_was_influenced_by.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P15_was_influenced_by {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P15i_influenced.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P15i_influenced.java
new file mode 100644
index 0000000..83503ba
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P15i_influenced.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P15i_influenced {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P16_used_specific_object.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P16_used_specific_object.java
new file mode 100644
index 0000000..a4e9902
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P16_used_specific_object.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P16_used_specific_object {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P16i_was_used_for.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P16i_was_used_for.java
new file mode 100644
index 0000000..e824c9f
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P16i_was_used_for.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P16i_was_used_for {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P1_is_identified_by.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P1_is_identified_by.java
new file mode 100644
index 0000000..bee681c
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P1_is_identified_by.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P1_is_identified_by {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P1i_identifies.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P1i_identifies.java
new file mode 100644
index 0000000..275efd9
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P1i_identifies.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P1i_identifies {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P33_used_specific_technique.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P33_used_specific_technique.java
new file mode 100644
index 0000000..e5f3557
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P33_used_specific_technique.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P33_used_specific_technique {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P33i_was_used_by.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P33i_was_used_by.java
new file mode 100644
index 0000000..d914b7f
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P33i_was_used_by.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P33i_was_used_by  {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P9_consists_of.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P9_consists_of.java
new file mode 100644
index 0000000..d721000
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P9_consists_of.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P9_consists_of {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P9i_forms_part_of.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P9i_forms_part_of.java
new file mode 100644
index 0000000..61bf294
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P9i_forms_part_of.java
@@ -0,0 +1,8 @@
+package org.gcube.informationsystem.parthenos.model.relation;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface P9i_forms_part_of {
+
+}
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
new file mode 100644
index 0000000..a23cbd0
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP1_currently_offers.java
@@ -0,0 +1,20 @@
+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 */
+public interface PP1_currently_offers extends P9_consists_of {
+
+    /* ***************************************************
+     * Common interfaces
+     */
+
+    OWLNamedIndividual getOwlIndividual();
+
+    OWLOntology getOwlOntology();
+
+    void delete();
+
+}