Is there a way to convert N-Triples to N-Quads, or Turtle to TriG, by specifying named graph URI as the parameter? Preferably using riot or rapper.
Converting RDF triples to quads from command line?
365 views Asked by Martynas Jusevičius At
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I have been working on a tool based on Jena that simplifies working with streams of named graphs from the command line. Its name 'ngs' stands for 'named graph streams' and it is available as a runnable jar from the release section and the Java build creates a debian package.
https://github.com/SmartDataAnalytics/RdfProcessingToolkit/blob/master/README-NGS.md
Your use case is supported via
ngs map --graph 'http://your.graph' data.trigIt also supports mapping into the default graph and reading from stdin such ascat data.trig | ngs map --dgWith
ngs map --sparql 'CONSTRUCT WHERE { GRAPH ?g { ?s ?p ?o } }its also possible to perform general transformations on each consecutive sequence of quads having the same graph.