_:b70020060	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://schema.org/PropertyValue> .
_:b70020060	<http://schema.org/propertyID>	<http://www.wikidata.org/prop/direct/P356> .
_:b70020060	<http://schema.org/value>	"10.1017/S0950268818001279" .