5. (7 points) For the following data graph, use the query/transformation language StruQL of the Web data restructuring system STRUDEL to define a site graph that includes (I) the pages for all courses and (2) the pages for their books (i.e., text or reference) with relevant information (e.g., title, author(s), etc). Use label "book" for the links to all books. CIS421 CIS560 course reference reference name name CIS421 Instructor text DBMS text text John 12 ublisher title publish year tit author/ author author Courses CIS421, CIS560)