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<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "/usr/share/xml/docbook/schema/dtd/4.4/docbookx.dtd" [ <!ENTITY intro SYSTEM "introduction.docbook"> ]> <book> <bookinfo> <title>autoepatch documentation</title> </bookinfo> &intro; </book>