causally downstream of leaf node

@prefix obo: <http://purl.obolibrary.org/obo/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

obo:RO_0002404 a owl:ObjectProperty ;
    rdfs:label "causally downstream of"@en ;
    obo:IAO_0000117 <https://orcid.org/0000-0002-6601-2165> ;
    rdfs:isDefinedBy obo:ro.owl ;
    rdfs:subPropertyOf obo:BFO_0000062,
        obo:RO_0002427 ;
    owl:inverseOf obo:RO_0002411 ;
    skos:definition "inverse of upstream of" .