<http://webisa.webdatacommons.org/118925723>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<dot.gov> .
<http://webisa.webdatacommons.org/118925723>	<http://www.w3.org/ns/prov#value>	"The process applies vibration and pressure to a mixture of heated sulfur and coal ash, with the result being a dense, strong material that is highly resistant to acid and other chemicals." .
<http://webisa.webdatacommons.org/prov/455762477>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/118925723> .
<http://webisa.webdatacommons.org/118925723>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .