has agent leaf node

@prefix dct: <http://purl.org/dc/terms/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sio: <http://semanticscience.org/resource/> .

sio:hasAgent a owl:ObjectProperty ;
    rdfs:label "has agent"@en ;
    dct:description "has agent is a relation between a process and an entity, where the entity is present throughout the process and is a causal participant in the process."@en ;
    sio:equivalentTo "OBO_REL:has_agent" ;
    sio:subset "core",
        "sadi"@en ;
    rdfs:isDefinedBy <http://semanticscience.org/ontology/sio/v1.53/sio-subset-labels.owl> ;
    rdfs:subPropertyOf sio:hasParticipant .