_:vb50779931	<http://www.w3.org/2002/07/owl#onProperty>	<http://www.daml.org/2003/01/periodictable/PeriodicTable#symbol> .
_:vb50779931	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Restriction> .
_:vb50779931	<http://www.w3.org/2007/05/powder-s#describedby>	<http://demo.openlinksw.com/about/id/entity/http/www.daml.org/2003/01/periodictable/PeriodicTable.owl> .
_:vb50779931	<http://www.w3.org/2002/07/owl#cardinality>	"1"^^<http://www.w3.org/2001/XMLSchema#nonNegativeInteger> .