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RDF Learning (1)

Source: Internet
Author: User
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An RDF graph can be written in the following way:
1 All blank nodes are assigned blank node identifiers.
Blank node identifiers are specified for all blank nodes ).
2 each node is listed in turn as the subject of an un-nested RDF: Description element, using an RDF: About attribute if the node has a uriref,

Or an RDF: nodeid attribute if the node is blank.
List each node in sequence and use it as the subject of a non-nested RDF; description element (subject ). If the node has uriref, the RDF: Description element uses the RDF: About attribute). If the node is a null node, the RDF: Description element uses the RDF: nodeid attribute ).

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Related Keywords:
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