| annotation | | documentation |  | The generalised topic of that represents the intellectual content of the resource. Typically, a subject is expressed by keywords, key phrases, or even
 specific classification codes. Controlled vocabularies, authorities, or formal
 classification schemes may be employed when selecting descriptive subject terms. It
 is possible to employ both keywords, derived from a formal classification scheme,
 such as Dewey or UDC, and genres/subgenres such as those produced by TV-Anytime or
 Escort, to cover Subject(s) and Genre(s) and enter as appropriate Subject Type
 below. Persons as subjects are also placed here. Genre of the content is placed
 under element Type.
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