4.4.11: Subject

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The property subject represents a relationship between a resource and another resource which is a topic of the first resource rsp. describes the intellectual content of the first resource. If the topic of the resource has a spatial or temporal character, use coverage, spatial or temporal.

Guidelines for describing the subject of a resource

To express the topic of a resource we recommend to use a URI representing another resource describing this topic,

title	Inviato alla Biennale : Venezia, 1949 - 2009
subject	http://www.labiennale.org/en/Home.html
	title	La Biennale di Venezia

as linked data

or a URI representing the value of a controlled vocabulary,

like entries from authority file systems (e.g. the Library of Congress Subject Headings or the authority files of the German National Library, etc.),

title	My Winter Wonderland
subject	http://id.loc.gov/authorities/sh88004323#concept
	label	Cross-country skiing--Skating

as linked data

like entries from classification systems ((e.g. the Dewey Decimal Classification, or Linnaean taxonomy, etc.).

title	Transports in Kazakhstan 2000 - 2010
subject	W03_7
subject	G06_3

label	W03.7
name	Freight Transport
broader	W03
narrower	W03.72
narrower	W03.75

label	G06_3
name	Kazakhstan
broader	G06
narrower	G06_31
narrower	G06_35

as linked data

You may also use plain text. But if you need more than one entry to describe the content you should repeat the property.

title	How to get an aircraft
subject	aircraft
subject	leasing

as linked data

If you want to use a keyword or keyphrase in different languages, you should use language tags.

title	KONSTYTUCJA RZECZYPOSPOLITEJ POLSKIEJ
subject
	Rzeczpospolita Polska	pol
	Republic of Poland	eng

as linked data

If the subject is a person or organization you should use names from formal name authorities (e.g. from the Library of Congress Name Authority Headings [1], or from the Virtuell International Authority File [2]).

title	Candle in the wind
subject	gnd	118583549
	family name	Monroe
	given name	Marilyn
	born	1926
	died	1962

as linked data