<http://webisa.webdatacommons.org/454356484>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/115575867>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/454356484> .
<http://webisa.webdatacommons.org/454356484>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<slideshare.net> .
<http://webisa.webdatacommons.org/454356484>	<http://www.w3.org/ns/prov#value>	"Supply and demand theories predict that when many people possess what earlier was a scarce commodity (near-native English), the price goes down (Grin, 2001)." .