added missing rdf_metadata file
added missing rdf_metadata file

SynthSys/seek,SynthSys/seek,HITS-SDBV/seek,stuzart/seek,HITS-SDBV/seek,stuzart/seek,SynthSys/seek,SynthSys/seek,stuzart/seek,HITS-SDBV/seek,HITS-SDBV/seek