title: Where do I test my queries for my RDF written in SPARQL
body: <p>I am a beginner with Semantic Web technologies, My question might be a very basic one but I am really stuck figuring it out. 
  I have a RDF file I created from an XML and have validated it using w3.org RDF VALIDATOR.  My question is how can I run queries on my RDF document using SPARQL.
   The online  resource <a href="http://demo.openlinksw.com/sparql" rel="noreferrer">http://demo.openlinksw.com/sparql</a> does not work  and I have no Idea what or how to find information about this.</p>