<!DOCTYPE emptyexample [
<!ELEMENT emptyexample (par*)>
<!ELEMENT par (#PCDATA|image|imref)*>
<!ELEMENT image EMPTY>
<!ATTLIST image name    ID     #IMPLIED
                address CDATA  #REQUIRED>
<!ELEMENT imref EMPTY>
<!ATTLIST imref name    IDREF  #REQUIRED>
<!ENTITY  logo-uri "http://www.ucc.ie/xml/xml.gif">
]>
<emptyexample>
<par>The XML logo is shown in the image <imref name="xml-logo"/>.</par>
<par>The image shows an alternative syntax for an empty element 
<image name="xml-logo" address="&logo-uri;"></image></par>
</emptyexample>
