private function findConceptInFormula( &$formulasForELR, $taxonomy, $element )
	{
		if ( ! $formulasForELR ) return false;

		$conceptClark = "{" . $taxonomy->getNamespace() . "}" . $element['name'];

		foreach ( $formulasForELR as $variableSet )
		{
			foreach ( $variableSet->variablesByQName as $qname => $variable )
			{
				if ( ! $variable instanceof FactVariable ) continue;
				foreach ( $variable->filters as $x => $filter )
				{
					if ( ! $filter instanceof ConceptName ) continue;
					foreach ( $filter->qnames as $clark )
					{
						if ( $clark == $conceptClark ) return true;;
					}
				}
			}
		}

		return false;
	}