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Suppose we have a database for a library system composed of the following relations; Library (library\#, library name, library address ) [the key is (library\#)] Reader (reader\#, reader name, reader type, reader address) [the key is reader\#] Document (document\#, document title, document type, document descriptors) [the key is (doc- ument\#)] Copy (document\#, copy\#, library\#, copy location, copy status) [the key is (document\#, copy\#)], copy status can be 'available'or 'borrowed' Borrowing (reader\#, document\#, copy\#, date borrowed, date returned) [the key is (document\#, copy\#, date borrowed)] Express the following queries in Algebra (1 to 4), Calculus (2 and 3), SQL (all) == 1. List all the document copies, along with the library that has them (document\#, copy\#, library\#, copy location). 2. List the documents that the reader 'John' has. 3. List the documents not available in any library. 4. List the documents available in every library. 5. Which document is the most borrowed