title: SPARQL property path queries with arbitrary properties
body: <p><a href="http://www.w3.org/TR/sparql11-query/#propertypaths">SPARQL property path</a> queries of arbitrary length require using specific properties.  I want to query and find any path starting from a resource and ending in another resource. For example:</p>
  
  <pre><code>SELECT ?p
  WHERE { :startNode ?p* :endNode }
  </code></pre>
  
  <p>where <code>?p*</code> specifies a path. Is there a way of doing this?</p>