diff --git a/ontology/saref4wear.ttl b/ontology/saref4wear.ttl
index 78a500ebd340254c34bc4ea645869d7c144be5fc..2835670f9eb5862c9ae9ee8892299cb42a975522 100644
--- a/ontology/saref4wear.ttl
+++ b/ontology/saref4wear.ttl
@@ -9,7 +9,6 @@
 @prefix vann: <http://purl.org/vocab/vann/> .
 @prefix voaf: <http://purl.org/vocommons/voaf#> .
 @prefix saref: <https://saref.etsi.org/core/> .
-@prefix wgs84: <http://www.w3.org/2003/01/geo/wgs84_pos#> .
 @prefix s4city: <https://saref.etsi.org/saref4city/> .
 @prefix s4syst: <https://saref.etsi.org/saref4syst/> .
 @prefix s4wear: <https://saref.etsi.org/saref4wear/> .
@@ -133,13 +132,6 @@ geo:sfWithin rdf:type owl:ObjectProperty ;
              rdfs:label "sfWithin"@en .
 
 
-###  http://www.w3.org/2003/01/geo/wgs84_pos#location
-wgs84:location rdf:type owl:ObjectProperty ;
-               rdfs:comment "The relation between something and the point, or other geometrical thing in space, where it is.  For example, the relationship between a radio tower and a Point with a given lat and long. Or a relationship between a park and its outline as a closed arc of points, or a road and its location as a arc (a sequence of points). Clearly in practice there will be limit to the accuracy of any such statement, but one would expect an accuracy appropriate for the size of the object and uses such as mapping."@en ;
-               rdfs:isDefinedBy wgs84: ;
-               rdfs:label "location" .
-
-
 ###  http://www.w3.org/ns/ssn/systems/hasSystemCapability
 ssn-system:hasSystemCapability rdf:type owl:ObjectProperty ;
                                rdfs:comment "Relation from a System to a SystemCapability describing the capabilities of the System under certain Conditions."@en ;
@@ -563,6 +555,14 @@ geo:Geometry rdf:type owl:Class ;
              rdfs:label "Geometry"@en .
 
 
+###  http://www.opengis.net/ont/geosparql#Point
+geo:Point rdf:type owl:Class ;
+          rdfs:subClassOf geo:Geometry ;
+          rdfs:comment "A point, typically described using a coordinate system relative to Earth."@en ;
+          rdfs:isDefinedBy geo: ;
+          rdfs:label "Point"@en .
+
+
 ###  http://www.opengis.net/ont/geosparql#SpatialObject
 geo:SpatialObject rdf:type owl:Class ;
                   rdfs:comment "The class spatial-object represents everything that can have a spatial representation. It is superclass of feature and geometry."@en ;
@@ -570,14 +570,6 @@ geo:SpatialObject rdf:type owl:Class ;
                   rdfs:label "Spatial object"@en .
 
 
-###  http://www.w3.org/2003/01/geo/wgs84_pos#Point
-wgs84:Point rdf:type owl:Class ;
-            rdfs:subClassOf geo:Geometry ;
-            rdfs:comment "A point, typically described using a coordinate system relative to Earth, such as WGS84."@en ;
-            rdfs:isDefinedBy wgs84: ;
-            rdfs:label "Point"@en .
-
-
 ###  http://www.w3.org/ns/ssn/systems/SystemCapability
 ssn-system:SystemCapability rdf:type owl:Class ;
                             rdfs:comment """Describes normal measurement, actuation, sampling properties such as accuracy, range, precision, etc. of a System under some specified Conditions such as a temperature range.