<http://webisa.webdatacommons.org/109442304>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/492787318>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/109442304> .
<http://webisa.webdatacommons.org/109442304>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<googlecode.com> .
<http://webisa.webdatacommons.org/109442304>	<http://www.w3.org/ns/prov#value>	"On the iPhone, thread-based concurrency is a critical tool in achieving high interface responsiveness while implementing long-running and potentially computationally expensive background processing." .