How to add external variables to a sparql query?

@kadin 

To add external variables to a SPARQL query, you can use the BIND() keyword in your query. Here's an example of how you can add an external variable to a SPARQL query:

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PREFIX ex: <http://example.org/>

SELECT ?s ?o
WHERE {
  BIND("value" AS ?externalVariable)
  ?s ex:property ?o .
}

In this example, we are creating an external variable named ?externalVariable with the value "value" using the BIND() keyword. You can then use this external variable in your query as needed.