Has gender 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_gender a owl:FunctionalProperty,
        owl:ObjectProperty ;
    rdfs:label "Has gender"^^xsd:string ;
    owlready:python_name "gender"^^xsd:string ;
    rdfs:comment """For Person: This field is meant to capture the biological sex at birth of the Person. This field should not be used to study gender identity issues.
Use the gender or sex value present in the data under the assumption that it is the biological sex at birth. If the source data captures gender identity it should be stored in the [OBSERVATION](https://ohdsi.github.io/CommonDataModel/cdm60.html#observation) table. [Accepted gender concepts](http://athena.ohdsi.org/search-terms/terms?domain=Gender&standardConcept=Standard&page=1&pageSize=15&query=)"""@en,
        """For Provider: This field represents the recorded gender of the provider in the source data.
If given, put a concept from the gender domain representing the recorded gender of the provider. If not available, set to 0. [Accepted Concepts](http://athena.ohdsi.org/search-terms/terms?domain=Gender&standardConcept=Standard&page=1&pageSize=15&query=)."""@en ;
    rdfs:domain omop:BasePerson ;
    rdfs:range omop:Concept ;
    omop:omop_cdm_name "person.gender_concept_id#2 AS Concept"^^xsd:string,
        "provider.gender_concept_id#280 AS Concept"^^xsd:string .