-- Cleanup

    SPARQL CLEAR GRAPH <urn:graphql:schemaorg:bridge:products> ;
    SPARQL SELECT COUNT(*) FROM <urn:graphql:schemaorg:bridge:products> WHERE {?s ?p ?o} ;

    -- GraphQL Mapping Graph 
    SPARQL
    PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
    PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> 
    PREFIX owl: <http://www.w3.org/2002/07/owl#> 
    PREFIX dbo: <http://dbpedia.org/ontology/> 
    PREFIX dbp: <http://dbpedia.org/property/> 
    PREFIX	gql: <http://www.openlinksw.com/schemas/graphql#> 
    PREFIX dct: <http://purl.org/dc/terms/> 

    INSERT DATA INTO <urn:graphql:schemaorg:bridge:products>
    {
        #  Schema.Org to GraphQL Entity & Property Mappings  
        gql:Map gql:schemaObjects gql:Product, gql:Products, gql:Offer, gql:Offers, gql:WebPage, gql:FAQPage, gql:FAQPages, 
                                  gql:Question, gql:Questions, gql:Answer, gql:Answers, 
                                  gql:Images, gql:Actions, gql:Url ; # Target GraphQL Entity Types List
                gql:dataGraph <urn:schemaorg:products:abox> ; # Instance Data (ABox) Graph
                gql:schemaGraph <urn:graphql:schemaorg:bridge:products> . # This Schema and Mappings

        # Schema.org Product Class to GraphQL Entity Type Mappings #
        gql:Product gql:type gql:Object ;
            gql:rdfClass schema:Product .

        gql:Products gql:type gql:Array ;
            gql:rdfClass schema:Product .

        gql:Offer gql:type gql:Object ;
            gql:rdfClass schema:Offer .

        gql:Offers gql:type gql:Array ;
            gql:rdfClass schema:Offer .
        
        gql:WebPage gql:type gql:Object ;
            gql:rdfClass schema:WebPage .

        gql:FAQPage gql:type gql:Object ;
            gql:rdfClass schema:FAQPage .
        
        gql:FAQPages gql:type gql:Array ;
            gql:rdfClass schema:FAQPage .

        gql:Question gql:type gql:Object ;
            gql:rdfClass schema:Question .

        gql:Questions gql:type gql:Array ;
            gql:rdfClass schema:Question .

        gql:Answer gql:type gql:Object ;
            gql:rdfClass schema:Answer .
        
         gql:Answers gql:type gql:Array ;
            gql:rdfClass schema:Answer .

        gql:Images gql:type gql:Array ;
            gql:rdfClass schema:Image .
        
        gql:Actions gql:type gql:Array ;
            gql:rdfClass schema:Action .

        gql:Url gql:type gql:Object ;
            gql:rdfClass schema:URL .

        # GraphQL Entity Field (Property) to Schema.org Product Property Mappings #


        schema:offers a owl:ObjectProperty ;
            rdfs:range schema:Offer ;
            rdfs:domain schema:Product, schema:FAQPage;
            gql:type gql:Array ;
            gql:field gql:offers .

        schema:mainEntityOfPage a owl:ObjectProperty ;
            rdfs:range schema:WebPage ;
            rdfs:domain schema:Product ;
            # gql:type gql:Array ;
            gql:type gql:Scalar ;
            gql:field gql:mainEntityOfPage .
        
        schema:mainEntity a owl:ObjectProperty ;
            rdfs:range schema:Question, schema:acceptedAnswer ;
            rdfs:domain schema:FAQPage ;
            gql:type gql:Array ;
            # gql:type gql:Scalar ;
            gql:field gql:mainEntity .

        schema:image a owl:ObjectProperty ;
            rdfs:range schema:Image ;
            rdfs:domain schema:Product, schema:FAQPage ;
            # gql:type gql:Array ;
            gql:type gql:Scalar ;
            gql:field gql:image .
        
        schema:url a owl:ObjectProperty ;
            rdfs:range schema:URL ;
            rdfs:domain schema:Product, schema:FAQPage ;
            # gql:type gql:Array ;
            gql:type gql:Scalar ;
            gql:field gql:url .

        schema:potentialAction a owl:ObjectProperty ;
            rdfs:range schema:Action ;
            rdfs:domain schema:Product, schema:Offer ;
            # gql:type gql:Array ;
            gql:type gql:Scalar ;
            gql:field gql:potentialAction .

        schema:acceptedAnswer a owl:ObjectProperty ;
            rdfs:range schema:Answer ;
            rdfs:domain schema:Question ;
            # gql:type gql:Array ;
            gql:type gql:Scalar ;
            gql:field gql:acceptedAnswer .

        schema:name a owl:DatatypeProperty ;
            rdfs:range xsd:string ;
            rdfs:domain schema:Product, schema:Offer, schema:FAQPage, schema:Question ;
            gql:type gql:Scalar ;
            gql:field gql:name .

        schema:text a owl:DatatypeProperty ;
            rdfs:range xsd:string ;
            rdfs:domain schema:Answer ;
            gql:type gql:Scalar ;
            gql:field gql:text .

        schema:description a owl:DatatypeProperty ;
            rdfs:range xsd:string ;
            rdfs:domain schema:Product ;
            gql:type gql:Scalar ;
            gql:field gql:description .

        schema:sku a owl:DatatypeProperty ;
            rdfs:range xsd:string ;
            rdfs:domain schema:Product, schema:Offer ;
            gql:type gql:Scalar ;
            gql:field gql:sku .


        schema:brand a owl:DatatypeProperty ;
            rdfs:range xsd:string ;
            rdfs:domain schema:Product ;
            gql:type gql:Scalar ;
            gql:field gql:brand .

        schema:price a owl:DatatypeProperty ;
            rdfs:range xsd:decimal ;
            rdfs:domain schema:Product, schema:Offer ;
            gql:type gql:Scalar ;
            gql:field gql:price .

        schema:priceCurrency a owl:DatatypeProperty ;
            rdfs:range xsd:string ;
            rdfs:domain schema:Offer ;
            gql:type gql:Scalar ;
            gql:field gql:priceCurrency .

        schema:lowPrice a owl:DatatypeProperty ;
            rdfs:range xsd:decimal ;
            rdfs:domain schema:Offer ;
            gql:type gql:Scalar ;
            gql:field gql:lowPrice .

        schema:highPrice a owl:DatatypeProperty ;
            rdfs:range xsd:decimal ;
            rdfs:domain schema:Offer ;
            gql:type gql:Scalar ;
            gql:field gql:highPrice .
    } ;

    -- Clear Introspection Graph 
    SPARQL CLEAR GRAPH <urn:graphql:intro:schemaorg:products> ;  
    
     -- Update GQL Bridge Type Schema
    GQL_INIT_TYPE_SCHEMA(); -- Initialize GQL Type Schema for modification 
    GQL_INTRO_DEL ('urn:graphql:intro:schemaorg:products'); -- Delete Instrospection Data from the GQL Bridge Type System Schema
    --TTLP (GQL_CREATE_TYPE_SCHEMA ('urn:graphql:schemaorg:bridge:products'), '', 'urn:graphql:intro:schemaorg:products'); -- Generate Introspection Data 

   TTLP (GQL_GENERATE_INTRO ('
        type Query {
            "Offers Collection"
            Offers(name:String, iri:IRI, price:Float): [Offer]
            "Products Collection"
            Products(name:String, iri:IRI): [Product]
            "FAQ Pages Collection"
            FAQPages(name:String, iri:IRI, mainEntity:IRI): [FAQPage]
            "Questions Collection"
            Questions(name:String, iri:IRI, mainEntity:IRI): [Question]
            "Answers Collection"
            Answers(text:String, iri:IRI): [Answer]
        }

        " [Product class](http://schema.org/Product) "
        type Product {
            iri: IRI!
            name: String
            description: String
            sku: String
            brand: String
            offers: [Offer]
            mainEntityOfPage: IRI
            image: IRI
            url: IRI
            potentialAction: IRI
        }

        " [Offer class](http://schema.org/Offer) "
        type Offer {
            iri: IRI!
            name: String
            sku: String
            potentialAction: IRI
            price: Float
            priceCurrency: String
            lowPrice: Float
            highPrice: Float
        }

        " [FAQPage class](http://schema.org/FAQPage) "
        type FAQPage     {
            iri: IRI!
            name: String
            mainEntity: [Question]
            url: IRI
            image: IRI
            offers: [Offer]
        }

         " [Question class](http://schema.org/Question) "
        type Question     {
            iri: IRI!
            name: String
            acceptedAnswer: [Answer]
        }

        " [Answer class](http://schema.org/Answer) "
        type Answer     {
            iri: IRI!
            text: String
        }

          '), '', 'urn:graphql:intro:schemaorg:products');

    GQL_INTRO_ADD ('urn:graphql:intro:schemaorg:products'); -- Add modified Instrospection Data to GQL Bridge Type System Schema