You have been asked to design a database of documents, authors, and readers. described as follows:

Document: has a docID and a title

Author: each author is the creator of several documents, and each document is read by several readers

. Readers: each reader reads several documents, and each document is read by several readers.

Person: has a name, address. Authors and readers are persons.

Draw an E/R diagram, which includes entity sets, attributes, and relationships.

Remember to indicate the key for each entity set, as well as the cardinalities for each relationship using the appropriate notations.