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Jun 23rd, 2017
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  1. <!ELEMENT Course_Catalog (Department*)>
  2. <!ELEMENT Department (Title, Course*, (Professor|Lecturer)*)>
  3. <!ELEMENT Course (Title, Description?)>
  4. <!ELEMENT Title (#PCDATA)>
  5. <!ELEMENT Description (#PCDATA|Courseref)*>
  6. <!ELEMENT Courseref EMPTY>
  7. <!ELEMENT Professor (First_Name, Middle_Initial?, Last_Name)>
  8. <!ELEMENT First_Name (#PCDATA)>
  9. <!ELEMENT Middle_Initial (#PCDATA)>
  10. <!ELEMENT Last_Name (#PCDATA)>
  11. <!ELEMENT Lecturer (First_Name, Middle_Initial?, Last_Name)>
  12. <!ELEMENT Prerequisites (Prereq+)>
  13. <!ELEMENT Prereq (#PCDATA)>
  14. <!ATTLIST Department Code CDATA #REQUIRED>
  15. <!ATTLIST Department Chair IDREF #REQUIRED>
  16. <!ATTLIST Course Number ID #REQUIRED>
  17. <!ATTLIST Course Prerequisites IDREFS #IMPLIED>
  18. <!ATTLIST Course Instructors IDREFS #IMPLIED>
  19. <!ATTLIST Course Enrollment CDATA #IMPLIED>
  20. <!ATTLIST Professor InstrID ID #REQUIRED>
  21. <!ATTLIST Lecturer InstrID ID #REQUIRED>
  22. <!ATTLIST Courseref Number IDREF #REQUIRED>
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