<http://webisa.webdatacommons.org/prov/267798834>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/12013115> .
<http://webisa.webdatacommons.org/12013115>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<foothill.edu> .
<http://webisa.webdatacommons.org/12013115>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/12013115>	<http://www.w3.org/ns/prov#value>	"Human population density is a factor in every environmental problem. (4:49 min.) Available through the Foothill Library/Films on Demand." .