 <span class="extype" name="scala.Option">Option</span>[<span class="extype" name="org.apache.jena.graph.Node">Node</span>] = <span class="symbol">None</span></span>, <span name="predicate">predicate: <span class="extype" name="scala.Option">Option</span>[<span class="extype" name="org.apache.jena.graph.Node">Node</span>] = <span class="symbol">None</span></span>, <span name="object">object: <span class="extype" name="scala.Option">Option</span>[<span class="extype" name="org.apache.jena.graph.Node">Node</s