rong>
							<xforms:output ref="instance('control-instance')/status"/>
						</div>
					</xforms:group>
					<xforms:group
						ref=".[count(instance('doc')/*[1]/skos:prefLabel/@xml:lang) &gt; count(instance('doc')/*[1]/skos:prefLabel/@xml:lang[not(preceding::skos:prefLabel/@xml:lang = .)])]">
						<div class="bg-danger alert-box">
							<span class="glyphicon glyphicon-exclamation-sign"></span>
							<strong>Alert:</strong> Preferred label languages must be unique. </div>
					</xforms:group>
					<x