/** Send everything to nowhere ... efficiently */
public static StreamRDF sinkNull() { return new StreamRDFBase() ; }
public static StreamRDF writer(OutputStream out) { return new WriterStreamRDFTuples(IO.wrapUTF8(out)) ; }
public static StreamRDF writer(AWriter out) { return new WriterStreamRDFTuples(out) ; }
public static StreamRDF writer(Writer out) { return new WriterStreamRDFTuples(IO.wrap(out)) ; }