Once you've done the Apache Jena CLI tools setup we can query all users with Full Name (FN) "John Smith" directly fom the rdf/vcard.ttl Turtle RDF file with the rdf/vcard.rq SPARQL query:
sparql --data=rdf/vcard.ttl --query=rdf/vcard.rq
and that outputs:
---------------------------------
| x                             |
=================================
| <http://somewhere/JohnSmith/> |
---------------------------------

Ancestors (13)

  1. Apache Jena
  2. SPARQL implementation
  3. SPARQL
  4. Semantic triple
  5. Resource Description Framework
  6. Knowledge graph
  7. Ontology
  8. Machine learning
  9. Computer
  10. Information technology
  11. Area of technology
  12. Technology
  13. Home

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