the following three functions:
					</p>
					<ul>
						<li>
							<code>namedNode(uri)</code> returns a  <a href="#js-api-iri">NamedNode</a> with the
							<a>IRI</a> provided as a string via <code>uri</code>.
						</li>
						<li>
							<code>blankNode(id)</code> returns a <a href="#js-api-bnode">BlankNode</a>
							with an optional identifier provided as a string via <code>id</code>.
							If the <code>id</code> is omitted then the system generates a unique identifier.
						</li>
						<li>
					