diff --git a/diagrams/SAREF4LIFT figures.drawio b/diagrams/SAREF4LIFT figures.drawio
new file mode 100644
index 0000000000000000000000000000000000000000..fd0e481f6a3cb659a3a3e1b6585412288f9a0065
--- /dev/null
+++ b/diagrams/SAREF4LIFT figures.drawio	
@@ -0,0 +1 @@
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name="Function" id="OsbRhUAbX2evEqj6Q2bj">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</diagram><diagram name="Occurrence" id="dXug8UBKHZacRPFLVx6b">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</diagram><diagram id="-6cfSzRiLluZ09vaRuTJ" name="Property">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</diagram><diagram name="Component" id="0ErNhCmPR1c3CE-FOiTM">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</diagram></mxfile>
\ No newline at end of file
diff --git a/ontology/saref4lift.ttl b/ontology/saref4lift.ttl
index aa5c4909a99545c3556776073b304e65dacf8556..6fb92193ff27ee3bbd1756805be0ca7cf0b10fe0 100644
--- a/ontology/saref4lift.ttl
+++ b/ontology/saref4lift.ttl
@@ -12,15 +12,15 @@
 
 <https://saref.etsi.org/saref4lift/> rdf:type owl:Ontology ;
                                       owl:versionIRI <https://saref.etsi.org/saref4lift/v1.1.1/> ;
-                                      dcterms:source <https://saref.etsi.org/sources/saref4lift/> ;
-                                      owl:versionInfo "v1.2.2" ;
-                                      vann:preferredNamespaceUri "https://saref.etsi.org/saref4lift/" ;
-                                      dcterms:publisher <https://www.etsi.org/> ;
+                                      dcterms:description "This ontology extends the SAREF ontology for the Smart Lifts domain."@en ;
+                                      dcterms:license <https://forge.etsi.org/etsi-software-license> ;
                                       dcterms:modified "2021-02-23" ;
+                                      dcterms:publisher <https://www.etsi.org/> ;
+                                      dcterms:source <https://saref.etsi.org/sources/saref4lift/> ;
                                       dcterms:title "SAREF extension for Smart Lifts"@en ;
                                       vann:preferredNamespacePrefix "s4lift" ;
-                                      dcterms:license <https://forge.etsi.org/etsi-software-license> ;
-                                      dcterms:description "This ontology extends the SAREF ontology for the Smart Lifts domain."@en .
+                                      vann:preferredNamespaceUri "https://saref.etsi.org/saref4lift/" ;
+                                      owl:versionInfo "v1.2.2" .
 
 #################################################################
 #    Annotation properties
@@ -531,7 +531,7 @@ saref:UnitOfMeasure rdf:type owl:Class ;
 
 ###  https://saref.etsi.org/saref4lift/EmergencyPowerSupplySignal
 :EmergencyPowerSupplySignal rdf:type owl:Class ;
-                            rdfs:subClassOf :Signal ;
+                            rdfs:subClassOf :PowerSupplySignal ;
                             rdfs:label "Emergency power supply signal" .
 
 
@@ -655,6 +655,11 @@ saref:UnitOfMeasure rdf:type owl:Class ;
                 rdfs:label "Position signal" .
 
 
+###  https://saref.etsi.org/saref4lift/PowerSupplySignal
+:PowerSupplySignal rdf:type owl:Class ;
+                   rdfs:subClassOf :Signal .
+
+
 ###  https://saref.etsi.org/saref4lift/RegisteredNetworkOperator
 :RegisteredNetworkOperator rdf:type owl:Class ;
                            rdfs:subClassOf :BCSSignal ;
@@ -785,7 +790,7 @@ saref:UnitOfMeasure rdf:type owl:Class ;
 
 ###  https://saref.etsi.org/saref4lift/StandardEmergencyPowerSupplySignal
 :StandardEmergencyPowerSupplySignal rdf:type owl:Class ;
-                                    rdfs:subClassOf :Signal ;
+                                    rdfs:subClassOf :PowerSupplySignal ;
                                     rdfs:label "Standard emergency power supply signal" .
 
 
@@ -913,4 +918,4 @@ saref:UnitOfMeasure rdf:type owl:Class ;
 [ owl:qualifiedCardinality "1"^^xsd:nonNegativeInteger
 ] .
 
-###  Generated by the OWL API (version 4.2.8.20170104-2310) https://github.com/owlcs/owlapi
+###  Generated by the OWL API (version 4.5.9.2019-02-01T07:24:44Z) https://github.com/owlcs/owlapi