<?xml version=“1.0”?> <!DOCTYPE catalog PUBLIC “-//OASIS//DTD Entity Resolution XML Catalog V1.0//EN” “www.oasis-open.org/committees/entity/release/1.0/catalog.dtd”> <catalog xmlns=“urn:oasis:names:tc:entity:xmlns:xml:catalog”> <delegateSystem systemIdStartString=“example.org/a”
catalog="a.example.org.xml"/>
<delegateSystem systemIdStartString=“example.org/b”
catalog="b.example.org.xml"/>
<nextCatalog catalog=“c.example.org.xml”/> </catalog>