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* * * **The main elements of RDF are and the element, which can represent a specific resource.** * * * ## The Element is the root element of an RDF document. It defines the XML document as an RDF document. It also includes a reference to the RDF namespace: ```xml ..._Description goes here..._ * * * ## The Element The element can identify a resource through the `about` attribute. The element can contain elements that describe the resource: ```xml Bob Dylan USA Columbia 10.90 1985 The elements `artist`, `country`, `company`, `price`, and `year` are defined in the namespace `http://www.recshop.fake/cd#`. This namespace exists outside of RDF (it is not part of RDF itself). RDF only provides the framework, while the elements such as `artist`, `country`, `company`, `price`, and `year` must be defined by others—companies, organizations, or individuals. * * * ## Defining Properties as Attributes Property elements can also be defined as attributes (replacing the elements): ```xml * * * ## Using Properties to Define Attributes Property elements can also be used to define attributes (replacing the elements): ```xml ... ... In the example above, the `artist` property does not have a value but instead references a resource that contains information about the artist.