<http://webisa.webdatacommons.org/prov/36070785>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/18013190> .
<http://webisa.webdatacommons.org/18013190>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<coaltrainfacts.org> .
<http://webisa.webdatacommons.org/18013190>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/18013190>	<http://www.w3.org/ns/prov#value>	"How much acrolein, acetaldehyde, formaldehyde, heavy metals (including but not limited to mercury, lead, and arsenic), 1,3-Butadiene, polycyclic aromatic hydrocarbons, or other toxins will be deposited cumulatively?" .
<http://webisa.webdatacommons.org/prov/415136103>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/18013190> .