t a whole RDF graph. </p>
<p class="justify">A predicate in triple is a URI reference or QName, and the 
statement of predicate requires or produces the corresponding resource called 
property in RDF vocabulary. Note that any edge must be named by a URI in RDF. 
Furthermore, it must have a QName in SWCLOS, because it turns a slot name in 
CLOS. A subject in triple designates a non-literal resource, that is, the node 
must be expressed by a URI, otherwise it must be a blank node. The blank node 
has no URI b