Added two properties, plus a couple of minor fixes.

ontology/saref.ttl

@@ -94,10 +94,16 @@ saref:hasProfile rdf:type owl:ObjectProperty ;
                  rdfs:label "has profile"@en .
 
 
+###  https://saref.etsi.org/hasProperty
+saref:hasProperty rdf:type owl:ObjectProperty ;
+                  rdfs:comment "A relationship between an entity and a property of that entity"@en ;
+                  rdfs:label "has property"@en .
+
+
 ###  https://saref.etsi.org/hasSensingRange
 saref:hasSensingRange rdf:type owl:ObjectProperty ;
                       rdfs:comment "A relationship between a sensing function and a measurement identifying the range of a sensor detection"@en ;
-                      rdfs:label "has sensing range "@en .
+                      rdfs:label "has sensing range"@en .
 
 
 ###  https://saref.etsi.org/hasSensorType
@@ -154,6 +160,11 @@ saref:isControlledByDevice rdf:type owl:ObjectProperty ;
                            rdfs:label "is controlled by device"@en .
 
 
+###  https://saref.etsi.org/isFeatureOfInterestOf
+saref:isFeatureOfInterestOf rdf:type owl:ObjectProperty ;
+                            rdfs:comment "A relationship between a feature of interest and a measurement about it"@en ;
+                            rdfs:label "is feature of interest of"@en .
+
 ###  https://saref.etsi.org/isMeasuredByDevice
 saref:isMeasuredByDevice rdf:type owl:ObjectProperty ;
                          rdfs:comment "A relationship specifying the devices that can measure a certain property"@en ;
@@ -186,9 +197,9 @@ saref:makesMeasurement rdf:type owl:ObjectProperty ;
                        rdfs:label "makes measurement"@en .
 
 ###  https://saref.etsi.org/measurementMadeBy
-saref:measurementMadeBy a owl:ObjectProperty ;
-                       rdfs:comment "A relation between a measurement and the device that made it."@en ;
-                       rdfs:label "measurement made by"@en .
+saref:measurementMadeBy rdf:type owl:ObjectProperty ;
+                        rdfs:comment "A relation between a measurement and the device that made it."@en ;
+                        rdfs:label "measurement made by"@en .
 
 
 ###  https://saref.etsi.org/measuresProperty