@prefix sh: <http://www.w3.org/ns/shacl#> .
@prefix ex: <http://example.org/simpl#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .

ex:ParticipantShape
    a sh:NodeShape ;
    sh:targetClass ex:Participant ;

    sh:property [
        sh:path foaf:name ;
        sh:datatype xsd:string ;
        sh:minCount 1 ;
        sh:message "Participant must have a name."
    ] ;

    sh:property [
        sh:path dct:identifier ;
        sh:datatype xsd:string ;
        sh:minCount 1 ;
        sh:maxCount 1 ;
        sh:message "Participant must have exactly one identifier."
    ] .

ex:ResourceOfferingShape
    a sh:NodeShape ;
    sh:targetClass ex:ResourceOffering ;

    sh:property [
        sh:path dct:title ;
        sh:datatype xsd:string ;
        sh:minCount 1 ;
        sh:message "Resource offering must have a title."
    ] ;

    sh:property [
        sh:path dct:description ;
        sh:datatype xsd:string ;
        sh:minCount 1 ;
        sh:message "Resource offering must have a description."
    ] ;

    sh:property [
        sh:path ex:providedBy ;
        sh:class ex:Participant ;
        sh:minCount 1 ;
        sh:maxCount 1 ;
        sh:message "Resource offering must reference exactly one participant provider."
    ] ;

    sh:property [
        sh:path dct:created ;
        sh:datatype xsd:dateTime ;
        sh:minCount 1 ;
        sh:message "Resource offering must include a creation timestamp."
    ] .
    ] .