title: Is it possible to combine those 2 SPARQL INSERT into one?
body: <p>I want to perform the following queries, to add a relation skos:related between node a and node b :</p>
  
  <pre><code>  PREFIX skos:&lt;http://www.w3.org/2004/02/skos/core#&gt;
    INSERT { GRAPH ?graph { ?a skos:related ?b } }
    WHERE{
      GRAPH ?graph {
        { ?a skos:inScheme ?scheme } .
        { ?b skos:inScheme ?scheme }
      }
   };
   INSERT { GRAPH ?graph { ?b skos:related ?a } }
   WHERE{
     GRAPH ?graph {
       { ?a skos:inScheme ?scheme } .
       { ?b skos:inScheme ?scheme }
     }
   };
  </code></pre>
  
  <p>I would prefer to send a single query to the RDF store, but can't find a way to do so.
  Obviously, the queries are here in generic form, and ?a, ?b, ?scheme and ?graph variables are bound with specific values at execution.</p>
  
  <p>Is there a way?</p>