= Jena SPARQL hello world
{tag=Hello world}
They have a tutorial at: https://jena.apache.org/tutorials/sparql.html
Once you've done the <Apache Jena CLI tools setup> we can query all users with Full Name (FN) "John Smith" directly fom the \a[rdf/vcard.ttl] <Turtle RDF> file with the \a[rdf/vcard.rq] <SPARQL> query:
``
sparql --data=rdf/vcard.ttl --query=rdf/vcard.rq
``
and that outputs:
``
---------------------------------
| x |
=================================
| <http://somewhere/JohnSmith/> |
---------------------------------
``
Bibliography:
* https://stackoverflow.com/questions/41959550/cli-tool-ala-csvsql-for-sparql-and-ttl-n3-files-hello-world-example-for
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