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Explore the interconnected family relationships and lineage of Jane, John, Mary, and Jack Doe and Smith in a comprehensive manner.
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<family> <person id=“jane” mother=“mary” father=“john”> <name> Jane Doe </name></person> <person id=“john” children=“jane jack”> <name> John Doe </name> </person> <person id=“mary” children=“jane jack”> <name> Mary Smith </name> </person> <person id=“jack” mother=“mary” father=“john”> <name> Jack Smith </name></person> </family> <!DOCTYPE family [ <!ELEMENT family (person*)> <!ELEMENT person (name)> <!ELEMENT name (#PCDATA)> <!ATTLIST personid ID #REQUIREDmother IDREF #IMPLIEDfather IDREF #IMPLIEDchildren IDREFS #IMPLIED> ]> DTD XML DTD – OIDs und Referenzen • DTDs erlauben die Deklaration von OIDs, Referenzen und Referenzmengen als Attribute • Beispiel: