4^th
http://www.w3.org/1999/02/22-rdf-syntax-ns#_4
is a Property

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Outgoing links
Property	Object
By	http://www.w3.org/1999/02/22-rdf-syntax-ns#
See also	http://www.w3.org/1999/02/22-rdf-syntax-ns#
Type	Property