diff --git a/ontology/saref4wear.ttl b/ontology/saref4wear.ttl
index ea7255d8db543d4b65c3bb6f0bb33c4dbbe63bfa..b7625cc62fe907591f765fb10ac451667da45d57 100644
--- a/ontology/saref4wear.ttl
+++ b/ontology/saref4wear.ttl
@@ -633,21 +633,19 @@ s4wear:ActionFunction rdf:type owl:Class ;
 
 
 ###  https://saref.etsi.org/saref4wear/ActuableObject
-s4wear:ActuableObject rdf:type owl:Class .
+s4wear:ActuableObject rdf:type owl:Class ;
+                      rdfs:label "Actuable object"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/Area
-s4wear:Area rdf:type owl:Class .
+s4wear:Area rdf:type owl:Class ;
+            rdfs:label "Area"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/Biometric
 s4wear:Biometric rdf:type owl:Class ;
-                 rdfs:subClassOf s4wear:Information .
-
-
-###  https://saref.etsi.org/saref4wear/BusinessEvents
-s4wear:BusinessEvents rdf:type owl:Class ;
-                      rdfs:subClassOf s4city:Event .
+                 rdfs:subClassOf s4wear:Information ;
+                 rdfs:label "Biometric information"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/CommunicationFunction
@@ -662,22 +660,20 @@ s4wear:ControlFunction rdf:type owl:Class ;
 
 ###  https://saref.etsi.org/saref4wear/ElectricalSafety
 s4wear:ElectricalSafety rdf:type owl:Class ;
-                        rdfs:subClassOf s4wear:Information .
+                        rdfs:subClassOf s4wear:Information ;
+                        rdfs:label "Electrical safety information"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/Emission
 s4wear:Emission rdf:type owl:Class ;
-                rdfs:subClassOf s4wear:Information .
+                rdfs:subClassOf s4wear:Information ;
+                rdfs:label "Emission information"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/FabricWearable
 s4wear:FabricWearable rdf:type owl:Class ;
-                      rdfs:subClassOf s4wear:TextileBasedWearable .
-
-
-###  https://saref.etsi.org/saref4wear/FunEvents
-s4wear:FunEvents rdf:type owl:Class ;
-                 rdfs:subClassOf s4city:Event .
+                      rdfs:subClassOf s4wear:TextileBasedWearable ;
+                      rdfs:label "Fabric wearable"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/InBodyWearable
@@ -689,31 +685,31 @@ s4wear:InBodyWearable rdf:type owl:Class ;
                                                              ]
                                                            ) ;
                                         rdf:type owl:Class
-                                      ] .
+                                      ] ;
+                      rdfs:label "In-body wearable"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/Information
-s4wear:Information rdf:type owl:Class .
+s4wear:Information rdf:type owl:Class ;
+                   rdfs:label "Information"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/Interface
-s4wear:Interface rdf:type owl:Class .
+s4wear:Interface rdf:type owl:Class ;
+                 rdfs:label "Interface"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/LivingOrganism
 s4wear:LivingOrganism rdf:type owl:Class ;
                       rdfs:subClassOf geosp:Feature ,
-                                      saref:FeatureOfInterest .
+                                      saref:FeatureOfInterest ;
+                      rdfs:label "Living organism"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/MemoryStorage
 s4wear:MemoryStorage rdf:type owl:Class ;
-                     rdfs:subClassOf s4wear:WearableComponent .
-
-
-###  https://saref.etsi.org/saref4wear/MusicEvents
-s4wear:MusicEvents rdf:type owl:Class ;
-                   rdfs:subClassOf s4city:Event .
+                     rdfs:subClassOf s4wear:WearableComponent ;
+                     rdfs:label "Memory storage"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/NearBodyWearable
@@ -725,7 +721,8 @@ s4wear:NearBodyWearable rdf:type owl:Class ;
                                                                ]
                                                              ) ;
                                           rdf:type owl:Class
-                                        ] .
+                                        ] ;
+                        rdfs:label "Near-body wearable"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/OnBodyWearable
@@ -737,23 +734,27 @@ s4wear:OnBodyWearable rdf:type owl:Class ;
                                                              ]
                                                            ) ;
                                         rdf:type owl:Class
-                                      ] .
+                                      ] ;
+                      rdfs:label "On-body wearable"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/PhysicalObject
 s4wear:PhysicalObject rdf:type owl:Class ;
                       rdfs:subClassOf geosp:Feature ,
-                                      saref:FeatureOfInterest .
+                                      saref:FeatureOfInterest ;
+                      rdfs:label "Physical object"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/PositionedWearable
 s4wear:PositionedWearable rdf:type owl:Class ;
-                          rdfs:subClassOf s4wear:Wearable .
+                          rdfs:subClassOf s4wear:Wearable ;
+                          rdfs:label "Positioned wearable"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/PowerSupply
 s4wear:PowerSupply rdf:type owl:Class ;
-                   rdfs:subClassOf saref:Device .
+                   rdfs:subClassOf saref:Device ;
+                   rdfs:label "Power supply"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/Software
@@ -761,24 +762,22 @@ s4wear:Software rdf:type owl:Class ;
                 rdfs:subClassOf saref:FeatureOfInterest .
 
 
-###  https://saref.etsi.org/saref4wear/SportEvents
-s4wear:SportEvents rdf:type owl:Class ;
-                   rdfs:subClassOf s4city:Event .
-
-
 ###  https://saref.etsi.org/saref4wear/TextileBasedDevice
 s4wear:TextileBasedDevice rdf:type owl:Class ;
-                          rdfs:subClassOf s4wear:TextileBasedWearable .
+                          rdfs:subClassOf s4wear:TextileBasedWearable ;
+                          rdfs:label "Textile-based device"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/TextileBasedSensor
 s4wear:TextileBasedSensor rdf:type owl:Class ;
-                          rdfs:subClassOf saref:Sensor .
+                          rdfs:subClassOf saref:Sensor ;
+                          rdfs:label "Textile-based sensor"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/TextileBasedWearable
 s4wear:TextileBasedWearable rdf:type owl:Class ;
-                            rdfs:subClassOf s4wear:OnBodyWearable .
+                            rdfs:subClassOf s4wear:OnBodyWearable ;
+                            rdfs:label "Textile-based wearable"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/User
@@ -790,7 +789,8 @@ s4wear:User rdf:type owl:Class ;
                                                    ]
                                                  ) ;
                               rdf:type owl:Class
-                            ] .
+                            ] ;
+            rdfs:label "User"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/Wearable
@@ -802,7 +802,8 @@ The definition of this concept satisfies the requirement WEAR-1."""@en ;
 
 
 ###  https://saref.etsi.org/saref4wear/WearableComponent
-s4wear:WearableComponent rdf:type owl:Class .
+s4wear:WearableComponent rdf:type owl:Class ;
+                         rdfs:label "Wearable component"@en .
 
 
 ###  https://saref.etsi.org/saref4wear/Wearer