<http://webisa.webdatacommons.org/prov/177485779>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/187982349> .
<http://webisa.webdatacommons.org/187982349>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<umich.edu> .
<http://webisa.webdatacommons.org/187982349>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/187982349>	<http://www.w3.org/ns/prov#value>	"over time and types of areas." .