diff --git a/ontology/saref4auto.ttl b/ontology/saref4auto.ttl
index 753ad9aecc13fac6ca1510b61780c9d8f96ef12a..ba80ae2f8a09f7f3a2daa1f4094c213fe8c4a797 100644
--- a/ontology/saref4auto.ttl
+++ b/ontology/saref4auto.ttl
@@ -117,25 +117,12 @@ vann:preferredNamespaceUri rdf:type owl:AnnotationProperty .
                rdfs:label "hasIdentifier"@en .
 
 
-###  https://saref.etsi.org/saref4auto/hasMember
-:hasMember rdf:type owl:ObjectProperty ;
-           owl:inverseOf :isMemberOf ;
-           rdfs:comment "A general relationship to express that an entity can have members"@en ;
-           rdfs:label "hasMember"@en .
-
 ###  https://saref.etsi.org/saref4auto/hasOpeningTimeAvailability
 :hasOpeningTimeAvailability rdf:type owl:ObjectProperty ;
                             rdfs:comment "A relation to express the opening time of parking spot"@en ;
                             rdfs:label "hasOpeningTimeAvailability"@en .
 
 
-###  https://saref.etsi.org/saref4auto/hasPlatoonMember
-:hasPlatoonMember rdf:type owl:ObjectProperty ;
-                  rdfs:subPropertyOf :hasMember ;
-                  rdfs:comment "A relation to express that a platoon can have vehicles as its members"@en ;
-                  rdfs:label "hasPlatoonMember"@en .
-
-
 ###  https://saref.etsi.org/saref4auto/hasPlatoonRole
 :hasPlatoonRole rdf:type owl:ObjectProperty ;
                 rdfs:subPropertyOf :hasRole ;
@@ -150,39 +137,12 @@ vann:preferredNamespaceUri rdf:type owl:AnnotationProperty .
          rdfs:label "hasRole"@en .
 
 
-###  https://saref.etsi.org/saref4auto/hasVehicleEnvironmentMember
-:hasVehicleEnvironmentMember rdf:type owl:ObjectProperty ;
-                             rdfs:subPropertyOf :hasMember ;
-                             rdfs:comment "A relation to express that a vehicle can have members in its environment"@en ;
-                             rdfs:label "hasVehicleEnvironmentMember"@en .
-
-
 ###  https://saref.etsi.org/saref4auto/isConfidenceOf
 :isConfidenceOf rdf:type owl:ObjectProperty ;
                 rdfs:comment "A relation between the confidence (s4auto:Confidence class) of some entity (ex. an observation) and that entity"@en ;
                 rdfs:label "isConfidenceOf"@en .
 
 
-###  https://saref.etsi.org/saref4auto/isMemberOf
-:isMemberOf rdf:type owl:ObjectProperty ;
-            rdfs:comment "A general relationship to express that an entity is a member of another entity"@en ;
-            rdfs:label "isMemberOf"@en .
-
-
-###  https://saref.etsi.org/saref4auto/isMemberOfPlatoon
-:isMemberOfPlatoon rdf:type owl:ObjectProperty ;
-                   rdfs:subPropertyOf :isMemberOf ;
-                   rdfs:comment "A relation to express that a vehicle can be member of  a platoon"@en ;
-                   rdfs:label "isMemberOfPlatoon"@en .
-
-
-###  https://saref.etsi.org/saref4auto/isMemberOfVehicleEnvironment
-:isMemberOfVehicleEnvironment rdf:type owl:ObjectProperty ;
-                              rdfs:subPropertyOf :isMemberOf ;
-                              rdfs:comment "A relation to express that an entity, e.g., a vehicle, can be member of  another vehicle's environment"@en ;
-                              rdfs:label "isMemberOfVehicleEnvironment"@en .
-
-
 ###  https://saref.etsi.org/saref4auto/usesProperty
 :usesProperty rdf:type owl:ObjectProperty ;
                  rdfs:comment "A relation to express that a device can use different types of properties, such as speed, position of detected road objects (e.g., bicycles, vehicles). This applies in particular to the ElectronicControlUnit and TrafficLightController classes."@en ;
@@ -423,7 +383,7 @@ vann:preferredNamespaceUri rdf:type owl:AnnotationProperty .
                            owl:hasValue :Length
                          ] ,
                          [ rdf:type owl:Restriction ;
-                           owl:onProperty :hasPlatoonMember ;
+                           owl:onProperty saref:consistsOf ;
                            owl:someValuesFrom :Vehicle
                          ] ,
                          [ rdf:type owl:Restriction ;
@@ -740,14 +700,6 @@ vann:preferredNamespaceUri rdf:type owl:AnnotationProperty .
                            owl:onProperty :hasProperty ;
                            owl:hasValue :Width
                          ] ,
-                         [ rdf:type owl:Restriction ;
-                           owl:onProperty :isMemberOfPlatoon ;
-                           owl:someValuesFrom :Platoon
-                         ] ,
-                         [ rdf:type owl:Restriction ;
-                           owl:onProperty :isMemberOfVehicleEnvironment ;
-                           owl:someValuesFrom :VehicleEnvironment
-                         ] ,
                          [ rdf:type owl:Restriction ;
                            owl:onProperty s4syst:hasSubSystem ;
                            owl:someValuesFrom :ElectronicControlUnit