xml/soap/webservice

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familytree.dtd：源码内容

							<!ENTITY % personref "PERSON IDREF #REQUIRED">
<!ENTITY % sourceref "SOURCE IDREF #REQUIRED">
<!ENTITY % family SYSTEM "family.dtd">
%family;
<!ENTITY % source SYSTEM "source.dtd">
%source;
<!ELEMENT FAMILY_TREE (SOURCE | PERSON | FAMILY )*>

						