<!--
    DTD for class
-->
<!ENTITY % section SYSTEM "section.dtd">

<!ELEMENT class (equivalent*, owner*, section*)>
<!ATTLIST class
          id CDATA #REQUIRED
          term CDATA #REQUIRED
          subject CDATA #REQUIRED
          catalognum CDATA #REQUIRED
          offering CDATA #REQUIRED>
<!ELEMENT equivalent EMPTY>
<!ATTLIST equivalent
          courseid CDATA #REQUIRED
          offering CDATA #REQUIRED
          term CDATA #REQUIRED>
<!ELEMENT owner (organization)>
<!ATTLIST owner
          percent CDATA #REQUIRED>
<!ELEMENT organization (#PCDATA)>
<!ATTLIST organization
			acadid CDATA #REQUIRED>