<http://webisa.webdatacommons.org/prov/227146528>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/318668619> .
<http://webisa.webdatacommons.org/318668619>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/219700329>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/318668619> .
<http://webisa.webdatacommons.org/318668619>	<http://www.w3.org/ns/prov#value>	"Subjects including literature and current events are unified by an environmental theme." .
<http://webisa.webdatacommons.org/318668619>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<mackinac.org> .