Practical Assignments. Design an ERD (15 points each) and map it into the relational model (10 points each) 1. An art museum owns a large volume of works of art: Each work of art is described by an item code (identifier), title, type, and size; size is further composed of height, width, and weight. Additionally, a work of art is described by its location within the museum. A work of art is developed by an artist, but the artist for some works is unknown. An arti described by an artist ID, name, date of birth, and date of death (which is null for still living artists). Only data about artists for works currently owned by the museum are kept in the . st is atabase. Some artists are represented by more than one work of art. eA work of art can be on loan to another gallery. Galleries are described by a gallery ID, name, and city. The museum wants to retain a complete history of loaning a work of art to other galleries, and each time a work is loaned, the museum wants to know the date the work was loaned and the date it was returned