Recall this element:
<maintainer email="elharo@metalab.unc.edu"
url="http://www.elharo.com/">
<name>
<first_name>Elliotte</first_name>
<middle_name>Rusty</middle_name>
<last_name>Harold</last_name>
</name>
</maintainer>
It is declared like this:
<!ELEMENT maintainer (name)>
<!ATTLIST maintainer email CDATA "webmaster@nywc.org">
<!ATTLIST maintainer url CDATA "http://www.ibiblio.org/nywc">
The general format of an <!ATTLIST>
declaration is:
<!ATTLIST Element_name Attribute_name Type Default_value>