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社区首页 >问答首页 >三个子属性的SPARQL查询不起作用

问三个子属性的SPARQL查询不起作用
EN

Stack Overflow用户
提问于 2017-06-12 22:15:22
回答 0查看 62关注 0票数 1

我尝试进行SPARQL查询，但失败了。我有三个属性，我需要这样请求：

代码语言：javascript
复制
SELECT DISTINCT ?locality ?museRes ?calendar ?category
FROM <http://opendata.cs.pub.ro/repo/context/TTT>
WHERE { 
 {
 ?museRes vCard:locality ?locality FILTER (regex(?museRes, "odaia_bunicii", "i")) .
 ?museRes vCard:category ?category FILTER (regex(?museRes, "odaia_bunicii", "i")).
 ?museRes vCard:hasCalendarRequest ?calendar FILTER (regex(?museRes, "odaia_bunicii", "i"))
 }
}

在Romanian OpenData SPARQL endpoint中

问题是三个属性是另外三个超属性(dcterm:spatials，dcterm:description和opendata:MuseumTour)的一部分，这种方法不起作用。我尝试使用选项运算符，但它只显示?museRes和?locality值，甚至?日历和?类别都不为空。

最后，我尝试使用UNION而不是OPTION，但它只适用于一个UNION，并且我需要使用两个UNION运算符。

如何在上述RDF中请求vCard:locality vCard:category和vCard:hasCalendarRequest？

代码语言：javascript
复制
<rdf:RDF
    xmlns:marcrel="http://www.loc.gov/loc.terms/relators/"
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:dcmitype="http://purl.org/dc/dcmitype/"
    xmlns:opendata="http://opendata.cs.pub.ro/property/"
    xmlns:vCard="http://www.w3.org/2006/vcard/ns#"
    xmlns:dbPedia="http://dbpedia.org/ontology/"
    xmlns:cdtype="http://purl.org/cld/cdtype/"
    xmlns:cld="http://purl.org/cld/terms/">
  <dbPedia:Museum rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/">
    <dcterms:description>
      <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Info/">
        <dc:identifier>7172383</dc:identifier>
        <opendata:FoundingYear>2016</opendata:FoundingYear>
        <dc:title xml:lang="en"></dc:title>
        <dcterms:isReferencedBy></dcterms:isReferencedBy>
        <marcrel:OWN>
          <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Info/Own/">
            <dc:identifier></dc:identifier>
            <dc:title></dc:title>
          </rdf:Description>
        </marcrel:OWN>
        <opendata:Accreditation></opendata:Accreditation>
        <dc:subject>
          <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Info/Subject/">
            <vCard:value xml:lang="en"></vCard:value>
            <vCard:label xml:lang="en">Specific (Principal) profile</vCard:label>
            <vCard:label>Profil specific (principal)</vCard:label>
            <vCard:value>Etnografie</vCard:value>
            <vCard:label>Profil general</vCard:label>
          </rdf:Description>
        </dc:subject>
        <dc:title>"Odaia Bunicii" - Centrul Folcloric Grădiniţa, Galicea Mare</dc:title>
        <vCard:hasCategory>
          <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Info/Category/">
            <opendata:MainCategory xml:lang="en">Museum</opendata:MainCategory>
            <opendata:MainCategory>Muzeu</opendata:MainCategory>
            <vCard:category xml:lang="en"></vCard:category>
            <vCard:category>Muzeu Comunal</vCard:category>
          </rdf:Description>
        </vCard:hasCategory>
        <dcterms:description>
          <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Info/Description/">
            <opendata:Historic xml:lang="en"></opendata:Historic>
            <opendata:Historic></opendata:Historic>
            <dcterms:abstract xml:lang="en"></dcterms:abstract>
            <dcterms:abstract></dcterms:abstract>
            <dcterms:description xml:lang="en"></dcterms:description>
            <dcterms:description>Centrul folcloric al grădiniţei Galicea Mare este situat în incinta Grădiniţei nr.1, structură a Şcolii Gimnaziale Galicea Mare, judeţul Dolj, pe drumul european E56. Pentru a readuce la viaţă şi a reînvia atât tradiţiile cât şi portul popular românesc, a luat naştere „Odaia bunicii”, un loc in care obiectele prind viaţă şi creează o atmosferă caldă, plina de dragostea ţaranilor de altadată. Expoziţia permanentă, deschisă în 2016, este concepută într-o manieră tradiţională, fiecare obiect aşteptând să fie folosit pentru a-şi arata maiestria, astfel: patul cu tablii de lemn şi saltea de paie aşteaptă să odihnească omul, măsuţa din lemn şi scaunelele aşteaptă cu nerăbdare să fie servită cina, dar şi războiul ţăranesc unde femeile ţeseau macate ne reamintesc nouă, celor mari, şi îi învaţă pe cei mici despre obiceiurile şi tradiţiile româneşti de altădată.</dcterms:description>
            <opendata:Relevance xml:lang="en">Local</opendata:Relevance>
            <opendata:Relevance>Locală</opendata:Relevance>
          </rdf:Description>
        </dcterms:description>
      </rdf:Description>
    </dcterms:description>
    <dbPedia:Building>
      <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Building/">
        <dbPedia:HistoricBuilding></dbPedia:HistoricBuilding>
        <dcterms:abstract xml:lang="en"></dcterms:abstract>
        <dcterms:abstract></dcterms:abstract>
        <dc:identifier></dc:identifier>
        <dc:type xml:lang="en">Building</dc:type>
        <dc:type>Cladire</dc:type>
      </rdf:Description>
    </dbPedia:Building>
    <opendata:MuseumTour>
      <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Tour/">
        <vCard:hasCalendarRequest xml:lang="en">Unspecified</vCard:hasCalendarRequest>
        <vCard:hasCalendarRequest>luni-vineri 8:00-13:00</vCard:hasCalendarRequest>
        <opendata:VirtualTour></opendata:VirtualTour>
      </rdf:Description>
    </opendata:MuseumTour>
    <opendata:Contact>
      <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Contact/">
        <vCard:url>
          <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Contact/URI/">
            <opendata:SocialMediaUri>
              <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Contact/URI/SocialMediaUri/">
                <vCard:label>Link-uri social media.</vCard:label>
                <vCard:hasValue></vCard:hasValue>
              </rdf:Description>
            </opendata:SocialMediaUri>
            <opendata:CimecUri>
              <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Contact/URI/CimecUri/">
                <vCard:label>Link-ul catre portalul CIMEC.</vCard:label>
                <vCard:hasValue>http://ghidulmuzeelor.cimec.ro/id.asp?k=2030&amp;-„Odaia-bunicii”-Centrul-folcloric-Gradinita,-Galicea-Mare-GALICEA-MARE-Dolj</vCard:hasValue>
              </rdf:Description>
            </opendata:CimecUri>
            <opendata:WebUri>
              <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Contact/URI/WebUri/">
                <vCard:label>Link-ul catre site-ul muzeului.</vCard:label>
                <vCard:hasValue></vCard:hasValue>
              </rdf:Description>
            </opendata:WebUri>
          </rdf:Description>
        </vCard:url>
        <vCard:Individual>
          <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Contact/Individual/">
            <opendata:Employee>
              <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Contact/Individual/Employee/">
                <vCard:hasName>Gologan Veronica</vCard:hasName>
                <vCard:hasRole>Profesor</vCard:hasRole>
              </rdf:Description>
            </opendata:Employee>
            <opendata:Manager>
              <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Contact/Individual/Manager/">
                <vCard:hasName>Văduva Cristian</vCard:hasName>
                <vCard:hasRole>Director</vCard:hasRole>
              </rdf:Description>
            </opendata:Manager>
          </rdf:Description>
        </vCard:Individual>
        <vCard:hasEmail></vCard:hasEmail>
        <vCard:hasTelephone>
          <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Contact/Telephone/">
            <vCard:Fax>
              <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Contact/Telephone/Fax/">
                <vCard:rev></vCard:rev>
                <vCard:value></vCard:value>
              </rdf:Description>
            </vCard:Fax>
            <vCard:Work>
              <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Contact/Telephone/Work/">
                <vCard:rev></vCard:rev>
                <vCard:value>0251.316.006; 0762.278.850</vCard:value>
              </rdf:Description>
            </vCard:Work>
          </rdf:Description>
        </vCard:hasTelephone>
      </rdf:Description>
    </opendata:Contact>
    <dcterms:spatials>
      <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Spatials/">
        <vCard:hasAddress>
          <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Spatials/Address/">
            <vCard:postal-code>207270</vCard:postal-code>
            <vCard:region>Dolj</vCard:region>
            <dbPedia:AdministrativeRegion>Galicea Mare</dbPedia:AdministrativeRegion>
            <vCard:hasLocality>
              <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Spatials/Locality/">
                <opendata:Siruta></opendata:Siruta>
                <vCard:locality>Galicea Mare</vCard:locality>
              </rdf:Description>
            </vCard:hasLocality>
            <vCard:street-address>Str. Calafatului nr. 10</vCard:street-address>
          </rdf:Description>
        </vCard:hasAddress>
        <opendata:Access xml:lang="en"></opendata:Access>
        <opendata:Access></opendata:Access>
        <vCard:hasGeo>
          <rdf:Description rdf:about="http://opendata.cs.pub.ro/resource/_Odaia_Bunicii-Centrul_Folcloric_Gradinita_Galicea_Mare_Dolj/Spatials/GeoPos/">
            <vCard:longitude>23.3</vCard:longitude>
            <vCard:latitude>44.1</vCard:latitude>
            <vCard:label>Localitate</vCard:label>
          </rdf:Description>
        </vCard:hasGeo>
      </rdf:Description>
    </dcterms:spatials>
  </dbPedia:Museum>
</rdf:RDF>
sparql
rdf
endpoint
EN

回答

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/44501633

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