os:prefLabel/@xml:lang) = count(distinct-values(parent::node()/parent::node()/skos:prefLabel/@xml:lang))"
						/>
					</xforms:bind>
					<xforms:bind nodeset="skos:altLabel" required="true()">
						<xforms:bind nodeset="@xml:lang" constraint="string-length(.) &gt; 0"/>
					</xforms:bind>
					<xforms:bind nodeset="skos:definition" required="true()">
						<xforms:bind nodeset="@xml:lang"
							constraint="string-length(.) &gt; 0 and count(parent::node()/parent::node()/skos:definition[@xml:lang='en']) 