ions in an RDF vocabulary
				so that certain engines can use them.
				Functions declared using the SHACL-JS vocabulary can, among others, be used by function calls
				in SPARQL FILTER or BIND clauses and in <a>SHACL rules</a>. 
			</p>
						
			<section class="informative">
				<h3>An Example JavaScript-based Function</h3>
				<p>
					The following example demonstrates how JavaScript can be used to specify new SHACL function.
					The function can be used, for example in SPARQL using <code>BIND (ex:squ