created on Feb. 17, 2013, 12:53 a.m. by Hevok & updated on Feb. 17, 2013, 6 p.m. by Hevok
Blank Nodes denote the existence of an individual with specific attributes, but without providing an identification or reference.
There can be a Subject or an Object that has no URI associated with it and than it is a blank/empty node. It simply denotes the existence of some individuals that has specific properties or that has specific individual attributes, but it is note denoted which individual it is, it has no name. Sometimes it is very convenient to make a statement about that exists without telling which individuals directly are addressed with this information. For this case Blank Nodes are necessary.
A Blank Node does not have a globally unique identifier, but it has any statements describing the node, a label and representation in RDF Turtle.
A Blank Node can be dereferenced by its node ID, but only with the same graph.
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