code: @Override
      public GraphQueryResult evaluate()
              throws QueryEvaluationException {
          try {
              sync();
              return getMarkLogicClient().sendGraphQuery(getQueryString(),getBindings(),getIncludeInferred(),getBaseURI());
          } catch (IOException e) {
              throw new QueryEvaluationException(e);
          } catch (MarkLogicSesameException e) {
              throw new QueryEvaluationException(e);
          }
      }
docs: evaluate graph query
  
  @return GraphQueryResult
  @throws QueryEvaluationException