diff --git a/config/semantic-net.ttl b/config/semantic-net.ttl
index fece4e2f52bb286e83661425e12873552c619185..c2b0a172cd88cb025af1f03bd77d02a65c92ce82 100644
--- a/config/semantic-net.ttl
+++ b/config/semantic-net.ttl
@@ -15,35 +15,50 @@ net:Instance
   rdfs:label "Semantic Net Instance" ;
   rdfs:subClassOf net:Structure ;
 .
+net:Net_Type
+  rdf:type owl:Class ;
+  rdfs:label "Semantic Net Type" ;
+  rdfs:subClassOf net:Structure ;
+.
 net:Object
   rdf:type owl:Class ;
   rdfs:label "Object using in semantic net instance" ;
   rdfs:subClassOf net:Structure ;
 .
+net:Object_Type
+  rdf:type owl:Class ;
+  rdfs:label "Object Type" ;
+  rdfs:subClassOf net:Structure ;
+.
 net:Structure
   rdf:type owl:Class ;
   rdfs:comment "A semantic net captures a set of nodes, and associates this set with type(s) and value(s)." ;
   rdfs:label "Semantic Net Structure" ;
 .
-net:Type
-  rdf:type owl:Class ;
-  rdfs:label "Semantic Net Type" ;
-  rdfs:subClassOf net:Structure ;
-.
 net:abstraction
   rdf:type owl:Class ;
   rdfs:label "abstraction" ;
-  rdfs:subClassOf net:Type ;
+  rdfs:subClassOf net:Net_Type ;
 .
 net:abstractionClass
   rdf:type rdf:Property ;
   rdfs:label "abstraction class" ;
   rdfs:subPropertyOf net:objectValue ;
 .
+net:atom
+  rdf:type owl:Class ;
+  rdfs:label "atom" ;
+  rdfs:subClassOf net:Object_Type ;
+.
+net:atomType
+  rdf:type rdf:Property ;
+  rdfs:label "atom type" ;
+  rdfs:subPropertyOf net:objectType ;
+.
 net:class
   rdf:type owl:Class ;
   rdfs:label "class" ;
-  rdfs:subClassOf net:Type ;
+  rdfs:subClassOf net:Net_Type ;
 .
 net:classUri
   rdf:type rdf:Property ;
@@ -53,12 +68,12 @@ net:classUri
 net:class_list
   rdf:type owl:Class ;
   rdfs:label "classList" ;
-  rdfs:subClassOf net:Type ;
+  rdfs:subClassOf net:Net_Type ;
 .
 net:complement
   rdf:type owl:Class ;
   rdfs:label "complement" ;
-  rdfs:subClassOf net:Type ;
+  rdfs:subClassOf net:Net_Type ;
 .
 net:complement_mod_list
   rdf:type owl:Class ;
@@ -73,7 +88,7 @@ net:concept
 net:entity
   rdf:type owl:Class ;
   rdfs:label "entity" ;
-  rdfs:subClassOf net:Type ;
+  rdfs:subClassOf net:Net_Type ;
 .
 net:entityClass
   rdf:type rdf:Property ;
@@ -98,12 +113,12 @@ net:entity_mod_list
 net:event
   rdf:type owl:Class ;
   rdfs:label "event" ;
-  rdfs:subClassOf net:Type ;
+  rdfs:subClassOf net:Net_Type ;
 .
 net:feature
   rdf:type owl:Class ;
   rdfs:label "feature" ;
-  rdfs:subClassOf net:Type ;
+  rdfs:subClassOf net:Net_Type ;
 .
 net:featureClass
   rdf:type rdf:Property ;
@@ -112,7 +127,12 @@ net:featureClass
 .
 net:has_actor
   rdf:type rdf:Property ;
-  rdfs:label "has verb" ;
+  rdfs:label "has actor" ;
+  rdfs:subPropertyOf net:has_object ;
+.
+net:has_atom
+  rdf:type rdf:Property ;
+  rdfs:label "has atom" ;
   rdfs:subPropertyOf net:has_object ;
 .
 net:has_entity
@@ -162,7 +182,7 @@ net:has_subClass
 .
 net:has_target
   rdf:type rdf:Property ;
-  rdfs:label "has verb" ;
+  rdfs:label "has target" ;
   rdfs:subPropertyOf net:has_object ;
 .
 net:has_verb
@@ -193,7 +213,7 @@ net:modCat2
 net:mod_list
   rdf:type owl:Class ;
   rdfs:label "modList" ;
-  rdfs:subClassOf net:Type ;
+  rdfs:subClassOf net:Net_Type ;
 .
 net:objectAttribute
   rdf:type rdf:Property ;
@@ -209,6 +229,11 @@ net:objectValue
   rdfs:label "valuations"@fr ;
   rdfs:subPropertyOf net:objectAttribute ;
 .
+net:parentClass
+  rdf:type rdf:Property ;
+  rdfs:label "parent class" ;
+  rdfs:subPropertyOf net:objectValue ;
+.
 net:parentClassUri
   rdf:type rdf:Property ;
   rdfs:label "parent class uri" ;
@@ -221,7 +246,7 @@ net:property
 net:state_property
   rdf:type owl:Class ;
   rdfs:label "stateProperty" ;
-  rdfs:subClassOf net:Type ;
+  rdfs:subClassOf net:Net_Type ;
 .
 net:type
   rdf:type rdf:Property ;
@@ -231,7 +256,7 @@ net:type
 net:verb
   rdf:type owl:Class ;
   rdfs:label "verb" ;
-  rdfs:subClassOf net:Type ;
+  rdfs:subClassOf net:Net_Type ;
 .
 net:verbClass
   rdf:type rdf:Property ;
diff --git a/config/transduction-schemes.ttl b/config/transduction-schemes.ttl
index 3a6f6ff1483f6fa4ba5d7463158ecd85e8917046..3f82ee7ba9494068e15bb832207d5830287bef9f 100644
--- a/config/transduction-schemes.ttl
+++ b/config/transduction-schemes.ttl
@@ -251,10 +251,10 @@ WHERE {
    ?net1 a net:Instance.
    ?net1 net:type net:entity.
    ?net1 net:has_structure ?req.
-   ?net1 net:has_entity ?entityObject1.
-   ?entityObject1 net:entityClass ?entityClass.	
-   ?entityObject1 net:concept ?entityConcept.
-   ?entityObject1 net:entityInstance ?mainInstance. 
+   ?net1 net:has_atom ?atomObject1.
+   ?atomObject1 net:parentClass ?entityClass.	
+   ?atomObject1 net:concept ?entityConcept.
+   ?atomObject1 net:entityInstance ?mainInstance. 
    # Filter: entity not present in a class list
    FILTER NOT EXISTS  { ?net2 net:has_subClass ?entityConcept}
    # URI (for classes)
@@ -313,12 +313,12 @@ WHERE {
    ?verbObject1 net:verbClass ?verbClass.	
    ?verbObject1 net:concept ?verbConcept.
    ?net1 net:has_actor ?actorObject1.
-   ?actorObject1 net:entityClass ?actorClass.	
+   ?actorObject1 net:parentClass ?actorClass.	
    ?actorObject1 net:concept ?actorConcept.
    ?actorObject1 net:entityInstance ?actorInstance.
    ?actorObject1 net:instanceUri ?actorInstanceUri.  
    ?net1 net:has_target ?targetObject1.
-   ?targetObject1 net:entityClass ?targetClass.	
+   ?targetObject1 net:parentClass ?targetClass.	
    ?targetObject1 net:concept ?targetConcept.
    ?targetObject1 net:entityInstance ?targetInstance. 
    ?targetObject1 net:instanceUri ?targetInstanceUri. 
@@ -387,8 +387,9 @@ WHERE {
    ?net1 a net:Instance.
    ?net1 net:type net:feature.
    ?net1 net:has_structure ?req.
-   ?net1 net:featureClass ?featureClass.
-   ?net1 net:concept ?featureConcept.	
+   ?net1 net:has_atom ?atomObject1.
+   ?atomObject1 net:parentClass ?featureClass.
+   ?atomObject1 net:concept ?featureConcept.	
    # Filter: entity not present in a class list
    FILTER NOT EXISTS  { ?net2 net:class2 ?featureConcept}
    # URI: class
@@ -744,13 +745,13 @@ WHERE {
    ?net2 net:type net:entity.
    ?net2 net:has_structure ?req.
    ?net2 net:has_node ?uw2.
-   ?net2 net:has_entity ?actorObject.
+   ?net2 net:has_atom ?actorObject.
    # net3: entity (target)
    ?net3 a net:Instance.
    ?net3 net:type net:entity.
    ?net3 net:has_structure ?req.
    ?net3 net:has_node ?uw3.
-   ?net3 net:has_entity ?targetObject.
+   ?net3 net:has_atom ?targetObject.
    # condition: agt(net1, net2) et obj(net1, net3)
    ?uw1 unl:agt ?uw2.
    ?uw1 (unl:obj|unl:res) ?uw3.	
@@ -812,13 +813,13 @@ WHERE {
    ?net2 net:type net:entity.
    ?net2 net:has_structure ?req.
    ?net2 net:has_node ?uw2.
-   ?net2 net:has_entity ?actorObject.
+   ?net2 net:has_atom ?actorObject.
    # net3: entity (target)
    ?net3 a net:Instance.
    ?net3 net:type net:entity.
    ?net3 net:has_structure ?req.
    ?net3 net:has_node ?uw3.
-   ?net3 net:has_entity ?targetObject.
+   ?net3 net:has_atom ?targetObject.
    # condition: aoj(net1, net2) et obj(net1, net3)
    ?uw1 unl:aoj ?uw2.
    ?uw1 (unl:obj|unl:res) ?uw3.	
@@ -889,7 +890,7 @@ CONSTRUCT {
    ?newNet net:has_structure ?req.
    ?newNet net:has_node ?uw1, ?uw2, ?uw3.
    ?newNet net:entityClass ?entityClass.
-   ?newNet net:has_mainClass ?entityObject1.	
+   ?newNet net:has_mainClass ?atomObject1.	
    ?newNet net:has_subClass ?newEntity2, ?newEntity3.	
    ?newNet net:has_feature ?newFeature2, ?newFeature3.	
 }
@@ -899,9 +900,9 @@ WHERE {
    ?net1 net:type net:entity.
    ?net1 net:has_structure ?req.
    ?net1 net:has_node ?uw1.
-   ?net1 net:has_entity ?entityObject1.
-   ?entityObject1 net:entityClass ?entityClass.	
-   ?entityObject1 net:concept ?mainEntity.
+   ?net1 net:has_atom ?atomObject1.
+   ?atomObject1 net:parentClass ?entityClass.	
+   ?atomObject1 net:concept ?mainEntity.
    # condition: mod(net1, net2)
    ?uw1 unl:mod ?uw2.
    # net2: complement modList
@@ -999,7 +1000,7 @@ CONSTRUCT {
    ?newNet net:has_structure ?req.
    ?newNet net:has_node ?uw1, ?uw2, ?uw3.
    ?newNet net:entityClass ?entityClass1.
-   ?newNet net:has_mainClass ?entityObject1.	
+   ?newNet net:has_mainClass ?atomObject1.	
    ?newNet net:has_subClass ?newEntity2, ?newEntity3.	
    ?newNet net:has_feature ?newFeature2, ?newFeature3.	
 }
@@ -1009,9 +1010,9 @@ WHERE {
    ?net1 net:type net:entity.
    ?net1 net:has_structure ?req.
    ?net1 net:has_node ?uw1.
-   ?net1 net:has_entity ?entityObject1.
-   ?entityObject1 net:entityClass ?entityClass1.	
-   ?entityObject1 net:concept ?mainEntity.
+   ?net1 net:has_atom ?atomObject1.
+   ?atomObject1 net:parentClass ?entityClass1.	
+   ?atomObject1 net:concept ?mainEntity.
    # condition: mod(net1, net2)
    ?uw1 unl:mod ?uw2.
    # net2: entity modList
@@ -1096,7 +1097,7 @@ CONSTRUCT {
    ?newNet net:has_structure ?req.
    ?newNet net:has_node ?uw1, ?uw2, ?uw3.
    ?newNet net:entityClass ?entityClass1.
-   ?newNet net:has_mainClass ?entityObject1.	
+   ?newNet net:has_mainClass ?atomObject1.	
    ?newNet net:has_subClass ?newEntity2, ?newEntity3.	
 }
 WHERE {
@@ -1105,9 +1106,9 @@ WHERE {
    ?net1 net:type net:entity.
    ?net1 net:has_structure ?req.
    ?net1 net:has_node ?uw1.
-   ?net1 net:has_entity ?entityObject1.
-   ?entityObject1 net:entityClass ?entityClass1.	
-   ?entityObject1 net:concept ?mainEntity.
+   ?net1 net:has_atom ?atomObject1.
+   ?atomObject1 net:parentClass ?entityClass1.	
+   ?atomObject1 net:concept ?mainEntity.
    # condition: mod(net1, net2)
    ?uw1 unl:mod ?uw2.
    # net2: entity modList
@@ -1177,7 +1178,7 @@ CONSTRUCT {
 WHERE {
    # net1: entity
    ?object a net:Object.
-   ?object net:entityClass ?objectClass.	
+   ?object net:parentClass ?objectClass.	
    ?object net:concept ?objectConcept.
    # URI (for classes and instance)
    fprm:System_Ontology fprm:frameURI ?frameURI.
@@ -1324,7 +1325,7 @@ CONSTRUCT {
 WHERE {
    # net1: entity
    ?object a net:Object.
-   ?object net:entityClass ?objectClass.	
+   ?object net:parentClass ?objectClass.	
    ?object net:entityInstance ?objectInstance. 
    # URI (for classes and instance)
    fprm:System_Ontology fprm:frameURI ?frameURI.
@@ -1394,20 +1395,25 @@ PREFIX fprm: <https://unsel.tetras-libre.fr/tenet/frame/parameters#>
 # -- Create Entity net
 CONSTRUCT { 
    # Object: entity 
-   ?newEntity a net:Object.
-   ?newEntity net:objectType sys:Entity.
-   ?newEntity net:node ?uw1.
-   ?newEntity net:entityClass ?entityClass.
-   ?newEntity net:concept ?concept1.
+   ?newAtom a net:Object.
+   ?newAtom net:objectType net:atom.
+   ?newAtom net:atomType ?atomType.
+   # -- old --- ?newAtom net:objectType sys:Entity.
+   ?newAtom net:node ?uw1.
+   ?newAtom net:parentClass ?entityClass.
+   # -- old --- ?newAtom net:entityClass ?entityClass.
+   ?newAtom net:concept ?concept1.
    # Net: Entity
    ?newNet a net:Instance.
    ?newNet net:type net:entity.
    ?newNet net:has_structure ?req.
    ?newNet net:has_node ?uw1.
-   ?newNet net:has_entity ?newEntity.	
+   ?newNet net:has_atom ?newAtom.
+   # -- old --- ?newNet net:has_entity ?newAtom.
 }
 WHERE {
-   # Entity (from System Ontology)
+   # Atom Description (from System Ontology)
+   fprm:System_Entity fprm:class ?atomType.
    ?entity rdf:type fprm:System_Entity.
    ?entity fprm:class ?entityClass.
    ?entity fprm:restriction ?entityRestriction.
@@ -1415,18 +1421,18 @@ WHERE {
    ?uw1 rdf:type unl:UW_Occurrence.
    ?uw1 unl:is_substructure_of ?req.
    # ------ ?uw1 unl:is_occurrence_of ?lexTrg.
-   # Filter
+   # Filter on label
    ?uw1 rdfs:label ?uw1Label.
    FILTER ( regex(str(?uw1Label),str(?entityRestriction))  ).
    # Label: Id, concept
    ?uw1 unl:has_id ?uw1Id.
    BIND (strbefore(?uw1Label, '(') AS ?concept1).
-   # URI (for Entity Object)
+   # URI (for Atom Object)
    cprm:Config_Parameters cprm:netURI ?netURI.
    cprm:Config_Parameters cprm:objectRef ?objectRef.
    BIND (concat( ?netURI, ?objectRef) AS ?e1).
    BIND (concat(?e1, ?uw1Id) AS ?e2).
-   BIND (uri(?e2) AS ?newEntity).
+   BIND (uri(?e2) AS ?newAtom).
    # URI (for Entity Net)
    cprm:Config_Parameters cprm:netURI ?netURI.
    BIND (concat( ?netURI, ?entityClass, '_') AS ?n1).
@@ -1450,32 +1456,49 @@ PREFIX fprm: <https://unsel.tetras-libre.fr/tenet/frame/parameters#>
     
 # -- Create Feature net
 CONSTRUCT { 
-   ?semNet a net:Instance.
-   ?semNet net:type net:feature.
-   ?semNet net:has_structure ?req.
-   ?semNet net:has_node ?uw1.
-   ?semNet net:featureClass ?featureClass.
-   ?semNet net:concept ?concept1. 
+   # Object: atom (feature) 
+   ?newAtom a net:Object.
+   ?newAtom net:objectType net:atom.
+   ?newAtom net:atomType ?atomType.
+   ?newAtom net:node ?uw1.
+   ?newAtom net:parentClass ?featureClass.
+   ?newAtom net:concept ?concept1.
+   # Net: Feature
+   ?newNet a net:Instance.
+   ?newNet net:type net:feature.
+   ?newNet net:has_structure ?req.
+   ?newNet net:has_node ?uw1.
+   # -- old --- ?newNet net:featureClass ?featureClass.
+   # -- old --- ?newNet net:concept ?concept1.
+   ?newNet net:has_atom ?newAtom.
 }
 WHERE {
-   # Feature (from System Ontology)
-   ?entity rdf:type fprm:System_Feature.
-   ?entity fprm:class ?featureClass.
-   ?entity fprm:restriction ?featureRestriction.
+   # Atom Description (from System Ontology)
+   fprm:System_Feature fprm:class ?atomType.
+   ?atomDescription rdf:type fprm:System_Feature.
+   ?atomDescription fprm:class ?featureClass.
+   ?atomDescription fprm:restriction ?featureRestriction.
    # UW: type UW-Occurrence and substructure of req sentence
    ?uw1 rdf:type unl:UW_Occurrence.
    ?uw1 unl:is_substructure_of ?req.
    # ------ ?uw1 unl:is_occurrence_of ?lexTrg.
-   # Label(s) / URI
+   # Filter on label
    ?uw1 rdfs:label ?uw1Label.
+   FILTER ( regex(str(?uw1Label),str(?featureRestriction))  ).
+   # Label: Id, concept
    ?uw1 unl:has_id ?uw1Id.
-   cprm:Config_Parameters cprm:netURI ?netURI
    BIND (strbefore(?uw1Label, '(') AS ?concept1).
-   BIND (concat( ?netURI, ?featureClass, '_') AS ?s1).
-   BIND (concat(?s1, ?uw1Id) AS ?s2).
-   BIND (uri(?s2) AS ?semNet).
-   # Filter
-   FILTER ( regex(str(?uw1Label),str(?featureRestriction))  ).
+   # URI (for Atom Object)
+   cprm:Config_Parameters cprm:netURI ?netURI.
+   cprm:Config_Parameters cprm:objectRef ?objectRef.
+   BIND (concat( ?netURI, ?objectRef) AS ?a1).
+   BIND (concat(?a1, ?uw1Id) AS ?a2).
+   BIND (uri(?a2) AS ?newAtom).
+   # URI (for Entity Net)
+   cprm:Config_Parameters cprm:netURI ?netURI.
+   BIND (concat( ?netURI, ?featureClass, '_') AS ?n1).
+   BIND (concat(?n1, ?uw1Id) AS ?n2).
+   BIND (uri(?n2) AS ?newNet).
 }""" ;
   sh:order 2.1 ;
 .
@@ -1726,8 +1749,8 @@ WHERE {
    ?net1 a net:Instance.
    ?net1 net:type net:entity.
    ?net1 net:has_structure ?sameReq.
-   ?net1 net:has_entity ?sameObject1.
-   # -- old --- ?entityObject1 net:entityClass ?sameClass.	
+   ?net1 net:has_atom ?sameObject1.
+   # -- old --- ?entityObject1 net:parentClass ?sameClass.	
    # -- old --- ?entityObject1 net:concept ?sameEntity.
    ?sameObject1 net:entityInstance ?instanceName1. 
    # net2: entity classList
@@ -1798,7 +1821,7 @@ PREFIX fprm: <https://unsel.tetras-libre.fr/tenet/frame/parameters#>
 # -- Create Entity net
 CONSTRUCT { 
    # Object: entity 
-   ?entityObject1 net:entityInstance ?instanceName. 
+   ?atomObject1 net:entityInstance ?instanceName. 
 }
 WHERE {
    # net1: entity (with entity object)
@@ -1806,7 +1829,7 @@ WHERE {
    ?net1 net:type net:entity.
    ?net1 net:has_structure ?req.
    ?net1 net:has_node ?uw1.
-   ?net1 net:has_entity ?entityObject1. 
+   ?net1 net:has_atom ?atomObject1. 
    # condition: agt/obj(uw0, uw1)
    ?uw0 (unl:agt | unl:obj | unl:aoj) ?uw1.
    # UW: type UW-Occurrence and substructure of req sentence
diff --git a/frame/ontology-parameters.ttl b/frame/ontology-parameters.ttl
index 73bb4c692ee6126c207672abf99ddf026e590d92..2128c38328745bc9c4653a32c47597828b86dcfe 100644
--- a/frame/ontology-parameters.ttl
+++ b/frame/ontology-parameters.ttl
@@ -42,7 +42,7 @@ fprm:System_Feature
   rdfs:comment "Parameters related to Feature (System Ontology)." ;
   rdfs:label "feature" ;
   rdfs:subClassOf fprm:System_Ontology ;
-  fprm:class "Feature" ;
+  fprm:class "sys:Feature" ;
 .
 fprm:System_Ontology
   rdf:type owl:Class ;
diff --git a/prepare_work_data.py b/prepare_work_data.py
index dbfaf5de0622ba6aeb521b2c623e44259139446b..e8e360df0b4192dfbcb1ed2bd9c2477d69cd1c3c 100644
--- a/prepare_work_data.py
+++ b/prepare_work_data.py
@@ -142,6 +142,26 @@ def export_result(work_graph, export_ref, export_file):
                          format='turtle')
     
     
+def finalize_export_file(export_file):
+    """ finalize the export file by adding some useful prefixes """
+    
+    with open(export_file, "rt") as file:
+        x = file.read()
+    
+    with open(export_file, "wt") as file:
+        x = x.replace(
+            "@prefix sys: <https://unsel.tetras-libre.fr/tenet/frame/system-ontology/> .",
+            """@prefix sys: <https://unsel.tetras-libre.fr/tenet/frame/system-ontology/> .
+@prefix sys-Event: <https://unsel.tetras-libre.fr/tenet/frame/system-ontology/Event#> .
+@prefix sys-State_Property: <https://unsel.tetras-libre.fr/tenet/frame/system-ontology/State_Property#> .
+@prefix sys-abstract_thing: <https://unsel.tetras-libre.fr/tenet/frame/system-ontology/abstract_thing#> .
+@prefix sys-action_verb: <https://unsel.tetras-libre.fr/tenet/frame/system-ontology/action_verb#> .
+@prefix sys-agent: <https://unsel.tetras-libre.fr/tenet/frame/system-ontology/agent#> .
+@prefix sys-attributive_verb: <https://unsel.tetras-libre.fr/tenet/frame/system-ontology/attributive_verb#> .
+@prefix sys-component: <https://unsel.tetras-libre.fr/tenet/frame/system-ontology/component#> .
+@prefix sys-message: <https://unsel.tetras-libre.fr/tenet/frame/system-ontology/message#> .
+@prefix sys-place: <https://unsel.tetras-libre.fr/tenet/frame/system-ontology/place#> .""")
+        file.write(x)
         
 #==============================================================================
 # Main Function
@@ -165,6 +185,7 @@ def run(corpus, output_ref, output_file):
     
         print("\n" + "- Result")
         export_result(work_graph, output_ref, output_file)
+        finalize_export_file(output_file)
         
         print()
     
@@ -177,11 +198,11 @@ def run(corpus, output_ref, output_file):
 #==============================================================================
 
 if __name__ == '__main__':
-    run(req_100, 'R100', 'output100.ttl') 
-    run(req_300, 'R200', 'output200.ttl')
-    run(req_300, 'R300', 'output300.ttl') 
-    run(corpus_40, 'Corpus-CCTP-40', 'outputCCTP40.ttl')
-    run(corpus_ERTMS, 'Corpus-ERTMS', 'outputERTMS.ttl')
+    #run(req_100, 'R100', 'output100.ttl') 
+    #run(req_200, 'R200', 'output200.ttl')
+    run(req_300, 'R300b', 'output300b.ttl') 
+    #run(corpus_40, 'Corpus-CCTP-40', 'outputCCTP40.ttl')
+    #run(corpus_ERTMS, 'Corpus-ERTMS', 'outputERTMS.ttl')