<http://webisa.webdatacommons.org/prov/162718243>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/253741040> .
<http://webisa.webdatacommons.org/253741040>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/253741040>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<cdc.gov> .
<http://webisa.webdatacommons.org/253741040>	<http://www.w3.org/ns/prov#value>	"After exposure to high levels of carbon tetrachloride, the nervous system, including the brain, is affected." .