<http://webisa.webdatacommons.org/274689599>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/308320476>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/274689599> .
<http://webisa.webdatacommons.org/274689599>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<drlwilson.com> .
<http://webisa.webdatacommons.org/274689599>	<http://www.w3.org/ns/prov#value>	"tiles, auto fumes from the past and other sources combine to make lead toxicity" .