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
deleted file mode 100644
index c792a6e..0000000
--- a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P14_carried_out_by.java
+++ /dev/null
@@ -1,8 +0,0 @@
-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/P15_was_influenced_by.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P15_was_influenced_by.java
deleted file mode 100644
index 1f13ae6..0000000
--- a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P15_was_influenced_by.java
+++ /dev/null
@@ -1,8 +0,0 @@
-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/PP25_is_maintained_by.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP25_is_maintained_by.java
index 92520d3..150f25a 100644
--- a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP25_is_maintained_by.java
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP25_is_maintained_by.java
@@ -1,5 +1,7 @@
 package org.gcube.informationsystem.parthenos.model.relation;
 
+import org.gcube.informationsystem.parthenos.model.relation.isrelatedto.P15_was_influenced_by;
+
 
 /**
  * @author Luca Frosini (ISTI - CNR)
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP25i_maintains.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP25i_maintains.java
index d511173..c7c64a5 100644
--- a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP25i_maintains.java
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP25i_maintains.java
@@ -1,5 +1,7 @@
 package org.gcube.informationsystem.parthenos.model.relation;
 
+import org.gcube.informationsystem.parthenos.model.relation.isrelatedto.inverse.P15i_influenced;
+
 
 /**
  * @author Luca Frosini (ISTI - CNR)
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP2_provided_by.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP2_provided_by.java
deleted file mode 100644
index dad991d..0000000
--- a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP2_provided_by.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package org.gcube.informationsystem.parthenos.model.relation;
-
-
-/**
- * @author Luca Frosini (ISTI - CNR)
- */
-public interface PP2_provided_by extends P14_carried_out_by {
-
-}
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/isrelatedto/P130_shows_features_of.java
similarity index 97%
rename from src/main/java/org/gcube/informationsystem/parthenos/model/relation/P130_shows_features_of.java
rename to src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/P130_shows_features_of.java
index eb61528..adb3c55 100644
--- 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/isrelatedto/P130_shows_features_of.java
@@ -1,4 +1,4 @@
-package org.gcube.informationsystem.parthenos.model.relation;
+package org.gcube.informationsystem.parthenos.model.relation.isrelatedto;
 
 import org.gcube.informationsystem.model.entity.Resource;
 import org.gcube.informationsystem.model.relation.IsRelatedTo;
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/P14_carried_out_by.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/P14_carried_out_by.java
new file mode 100644
index 0000000..40a6706
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/P14_carried_out_by.java
@@ -0,0 +1,43 @@
+package org.gcube.informationsystem.parthenos.model.relation.isrelatedto;
+
+import org.gcube.informationsystem.model.entity.Resource;
+import org.gcube.informationsystem.model.relation.IsRelatedTo;
+
+/**
+ * @author Luca Frosini (ISTI - CNR) 
+ * 
+ * P14 carried out by (performed) 
+ * 
+ * Domain: E7 Activity 
+ * Range: E39 Actor 
+ * Subproperty of: E5 Event. P11 had participant (participated in): E39 Actor 
+ * Superproperty of: E8 Acquisition. P22 transferred title to (acquired title 
+ *         through): E39 Actor E8 Acquisition. P23 transferred title from 
+ *         (surrendered title through): E39 Actor E10 Transfer of Custody. P28 
+ *         custody surrendered by (surrendered custody through): E39 Actor E10 
+ *         Transfer of Custody. P29 custody received by (received custody 
+ *         through): E39 Actor
+ * Quantification: many to many, necessary (1,n:0,n) 
+ * 
+ * Scope note: This
+ *         property describes the active participation of an E39 Actor in an E7
+ *         Activity. It implies causal or legal responsibility. The P14.1 in the
+ *         role of property of the property allows the nature of an Actor’s
+ *         participation to be specified. 
+ * 
+ * Examples: 
+ *  the painting of the Sistine Chapel (E7) carried out by Michaelangelo 
+ * Buonaroti (E21) in the role of master craftsman (E55)
+ * 
+ * In First Order Logic:
+ * P14 (x,y) ⊃ E7(x) 
+ * P14 (x,y)⊃ E39(y) 
+ * P14 (x,y) ⊃ P11(x,y) 
+ * P14(x,y,z) ⊃ [P14(x,y) ∧ E55(z)] 
+ * 
+ * Properties: P14.1 in the role of: E55 Type
+ */
+public interface P14_carried_out_by<Out extends Resource, In extends Resource>
+		extends IsRelatedTo<Out, In> {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/P15_was_influenced_by.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/P15_was_influenced_by.java
new file mode 100644
index 0000000..480237c
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/P15_was_influenced_by.java
@@ -0,0 +1,33 @@
+package org.gcube.informationsystem.parthenos.model.relation.isrelatedto;
+
+import org.gcube.informationsystem.model.entity.Resource;
+import org.gcube.informationsystem.model.relation.IsRelatedTo;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ * Domain: E7 Activity
+ * Range:E1 CRM Entity
+ * Superproperty of: E7 Activity. P16 used specific object (was used for): 
+ * E70 Thing E7 Activity. P17 was motivated by (motivated): E1 CRM Entity 
+ * E7 Activity. P134 continued (was continued by): E7 Activity E83 Type 
+ * Creation. P136 was based on (supported type creation): E1 CRM Entity
+ * 
+ * Quantification: many to many (0,n:0,n)
+ * 
+ * Scope note: This is a high level property, which captures the relationship 
+ * between an E7 Activity and anything that may have had some bearing upon it.
+ * The property has more specific sub properties.
+ * 
+ * Examples:
+ *   the designing of the Sydney Harbour Bridge (E7) was influenced by the 
+ * Tyne bridge (E22)
+ * 
+ * In First Order Logic:
+ * P15 (x,y) ⊃ E7(x)
+ * P15 (x,y) ⊃ E1(y)
+ * 
+ */
+public interface P15_was_influenced_by<Out extends Resource, In extends Resource>
+		extends IsRelatedTo<Out, In> {
+
+}
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/PP17_has_snapshot.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/PP17_has_snapshot.java
index b81a9ed..b7df102 100644
--- a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/PP17_has_snapshot.java
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/PP17_has_snapshot.java
@@ -2,7 +2,6 @@ package org.gcube.informationsystem.parthenos.model.relation.isrelatedto;
 
 import org.gcube.informationsystem.parthenos.model.entity.resource.PE19_Persistent_Digital_Object;
 import org.gcube.informationsystem.parthenos.model.entity.resource.PE20_Volatile_Digital_Object;
-import org.gcube.informationsystem.parthenos.model.relation.P130_shows_features_of;
 
 /**
  * @author Luca Frosini (ISTI - CNR)
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/PP2_provided_by.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/PP2_provided_by.java
new file mode 100644
index 0000000..647eddc
--- /dev/null
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/PP2_provided_by.java
@@ -0,0 +1,12 @@
+package org.gcube.informationsystem.parthenos.model.relation.isrelatedto;
+
+import org.gcube.informationsystem.parthenos.model.entity.resource.PE1_Service;
+import org.gcube.informationsystem.parthenos.model.entity.resource.cidoc.E39_Actor;
+
+/**
+ * @author Luca Frosini (ISTI - CNR)
+ */
+public interface PP2_provided_by<Out extends PE1_Service, In extends E39_Actor>
+		extends P14_carried_out_by<Out, In> {
+
+}
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/isrelatedto/inverse/P130i_features_are_also_found_on.java
similarity index 55%
rename from src/main/java/org/gcube/informationsystem/parthenos/model/relation/P130i_features_are_also_found_on.java
rename to src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/inverse/P130i_features_are_also_found_on.java
index ec76db4..3c53c43 100644
--- 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/isrelatedto/inverse/P130i_features_are_also_found_on.java
@@ -1,4 +1,4 @@
-package org.gcube.informationsystem.parthenos.model.relation;
+package org.gcube.informationsystem.parthenos.model.relation.isrelatedto.inverse;
 
 
 /**
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/isrelatedto/inverse/P14i_performed.java
similarity index 50%
rename from src/main/java/org/gcube/informationsystem/parthenos/model/relation/P14i_performed.java
rename to src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/inverse/P14i_performed.java
index f5ea505..e195a78 100644
--- a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P14i_performed.java
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/inverse/P14i_performed.java
@@ -1,4 +1,4 @@
-package org.gcube.informationsystem.parthenos.model.relation;
+package org.gcube.informationsystem.parthenos.model.relation.isrelatedto.inverse;
 
 /**
  * @author Luca Frosini (ISTI - CNR)
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/isrelatedto/inverse/P15i_influenced.java
similarity index 50%
rename from src/main/java/org/gcube/informationsystem/parthenos/model/relation/P15i_influenced.java
rename to src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/inverse/P15i_influenced.java
index 83503ba..84141e1 100644
--- a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/P15i_influenced.java
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/inverse/P15i_influenced.java
@@ -1,4 +1,4 @@
-package org.gcube.informationsystem.parthenos.model.relation;
+package org.gcube.informationsystem.parthenos.model.relation.isrelatedto.inverse;
 
 /**
  * @author Luca Frosini (ISTI - CNR)
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/inverse/PP17i_is_snapshot_of.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/inverse/PP17i_is_snapshot_of.java
index 1cfd015..d83762b 100644
--- a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/inverse/PP17i_is_snapshot_of.java
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/inverse/PP17i_is_snapshot_of.java
@@ -1,6 +1,5 @@
 package org.gcube.informationsystem.parthenos.model.relation.isrelatedto.inverse;
 
-import org.gcube.informationsystem.parthenos.model.relation.P130i_features_are_also_found_on;
 
 
 /**
diff --git a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP2i_provides.java b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/inverse/PP2i_provides.java
similarity index 56%
rename from src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP2i_provides.java
rename to src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/inverse/PP2i_provides.java
index 282ebe0..4c19711 100644
--- a/src/main/java/org/gcube/informationsystem/parthenos/model/relation/PP2i_provides.java
+++ b/src/main/java/org/gcube/informationsystem/parthenos/model/relation/isrelatedto/inverse/PP2i_provides.java
@@ -1,4 +1,5 @@
-package org.gcube.informationsystem.parthenos.model.relation;
+package org.gcube.informationsystem.parthenos.model.relation.isrelatedto.inverse;
+
 
 
 /**