def getBeginGeometryXMLOutput(elementNode=None):
	'Get the beginning of the string representation of this boolean geometry object info.'
	output = getBeginXMLOutput()
	attributes = {}
	if elementNode != None:
		documentElement = elementNode.getDocumentElement()
		attributes = documentElement.attributes
	addBeginXMLTag(attributes, 0, 'fabmetheus', output)
	return output