diff --git a/ontology/saref.ttl b/ontology/saref.ttl
index 0b973c651c8248db90e5c0d6eba753307332f9cf..5562fddbbb6c15fbe4d2c054a60a3e5a88886d55 100644
--- a/ontology/saref.ttl
+++ b/ontology/saref.ttl
@@ -1217,12 +1217,7 @@ saref:SwitchOnService rdf:type owl:Class ;
 
 ###  https://saref.etsi.org/Task
 saref:Task rdf:type owl:Class ;
-           rdfs:subClassOf [ rdf:type owl:Restriction ;
-                             owl:onProperty saref:isAccomplishedBy ;
-                             owl:minQualifiedCardinality "1"^^xsd:nonNegativeInteger ;
-                             owl:onClass saref:Device
-                           ] ;
-           rdfs:comment "The goal for which a device is designed (from a user perspective). For example, a washing machine is designed for the task of washing. We propose here a list of tasks that are relevant for the purpose of SAREF, but this list can be extended."^^xsd:string ;
+           rdfs:comment "The goal for which a device is designed (from a user perspective). For example, a washing machine is designed for the task of washing. We propose here a list of tasks that are relevant for the purpose of SAREF, but this list can be extended. Tasks can be accomplished by devices (saref:isAccomplishedBy)."^^xsd:string ;
            rdfs:label "Task"^^xsd:string .