<http://webisa.webdatacommons.org/328929277>	<http://www.w3.org/ns/prov#value>	"However, there is a lot of controversy regarding the meaning and scope of the term and scarce formal approaches to the problem of semantic heterogeneity." .
<http://webisa.webdatacommons.org/prov/67262502>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/328929277> .
<http://webisa.webdatacommons.org/328929277>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<psu.edu> .
<http://webisa.webdatacommons.org/328929277>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .