Subject	Predicate	Object	Graph
r4r:RRPolicy http://guava.iis.sinica.edu.tw/r4r/RRPolicy	r4r:Definition http://guava.iis.sinica.edu.tw/r4r/Definition	Any mechanism designed for rel ...... t for its subclasses concepts. http://www.w3.org/2001/XMLSchema#string	graph:default https://triplydb.com/none/r4r/graphs/default