<http://webisa.webdatacommons.org/321687467>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/31726579>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/321687467> .
<http://webisa.webdatacommons.org/prov/317098187>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/321687467> .
<http://webisa.webdatacommons.org/321687467>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<matter.org.uk> .
<http://webisa.webdatacommons.org/321687467>	<http://www.w3.org/ns/prov#value>	"Mercury is a toxic substance and levels should be minimized." .