How do you do the DRC part of this question?

Books (bid: integer, btitle: string, bgenre: string) Publishers (pid: integer, pname: string, paddress: string) Catalog (bid, pid, ccost: float) The key fields are underlined, and the domain of each field is listed after the field name. Thus, bid is the key for Books, pid is the key for Publishers, and bid and pid form the key for Catalog, Relation Catalog gives the prices charged for Books by Publishers. 5. (20 Points) Write the equivalent RA, DRC, and TRC expressions for the query: Find all the pnames of the Book with btitle "Gone with the Wind