schema:validFrom leaf node

@prefix cmns-dt: <https://www.omg.org/spec/Commons/DatesAndTimes/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix schema: <https://schema.org/> .

schema:validFrom a rdf:Property ;
    rdfs:label "validFrom" ;
    rdfs:comment "The date when the item becomes valid." ;
    owl:equivalentProperty cmns-dt:hasStartDate ;
    schema:contributor <https://schema.org/docs/collab/GoodRelationsTerms> ;
    schema:domainIncludes schema:Certification,
        schema:Demand,
        schema:FinancialIncentive,
        schema:LocationFeatureSpecification,
        schema:MonetaryAmount,
        schema:Offer,
        schema:OpeningHoursSpecification,
        schema:Permit,
        schema:PriceSpecification ;
    schema:rangeIncludes schema:Date,
        schema:DateTime .