Has drug era leaf node

@prefix omop: <https://w3id.org/omop/ontology/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix owlready: <http://www.lesfleursdunormal.fr/static/_downloads/owlready_ontology.owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

omop:has_drug_era a owl:ObjectProperty ;
    rdfs:label "Has drug era"^^xsd:string ;
    owlready:python_name "drug_eras"^^xsd:string ;
    rdfs:domain omop:Person ;
    rdfs:range omop:DrugEra ;
    omop:omop_cdm_name "drug_era.person_id#326 AS Person"^^xsd:string .