<http://webisa.webdatacommons.org/prov/21633509>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/375048823> .
<http://webisa.webdatacommons.org/375048823>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<city-sightseeing.us> .
<http://webisa.webdatacommons.org/375048823>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/375048823>	<http://www.w3.org/ns/prov#value>	"Fire prepares the seed bed by burning off the duff (decomposing bark, needles, and other vegetation) that accumulates on the forest floor." .