出典:Wikipedia
出典:『Wikipedia』 (2011/03/23 13:50 UTC 版)
In RDF, a blank node (or anonymous resource or bnode) is a node in an RDF graph which is not identified by a URI and is not a literal. Normally a blank node can only be used as subject or object in an RDF triple, in some syntaxes like Notation 3 it is acceptable to use a Blank Node as a predicate. Blank Nodes have a Node ID which is limited in scope to a serialization of a particular Graph, i.e. the Node p1 in the subsequent example does not represent the same Node as a Node named p1 in any other Graph.