<http://webisa.webdatacommons.org/prov/230822925>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/222653483> .
<http://webisa.webdatacommons.org/222653483>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<slideshare.net> .
<http://webisa.webdatacommons.org/222653483>	<http://www.w3.org/ns/prov#value>	"tough perennial weeds or grasses are a problem, thick layers of newspaper under a layer of organic" .
<http://webisa.webdatacommons.org/222653483>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .