The role property defines a hint for alternate renderers (aural readers, etc.) as to the role of the XML element that was used to construct this XSL-FO object. This information can be used to use alternate renderings when the normal rendering of an XSL-FO object is not appropriate.
|uri-specification||Defines a URI-specification that indicates an RDF resource (that is, an XML object that is valid with respect to the RDF grammar)|
|string||Specifies a semantic identifier to be used in rendering this XSL-FO object|
|none||Indicates that no semantic tag is cited by this XSL-FO object|