<http://webisa.webdatacommons.org/128264377>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/128264377>	<http://www.w3.org/ns/prov#value>	"Amalgam consists mainly of mercury which is a heavy metal that is toxic." .
<http://webisa.webdatacommons.org/prov/428614360>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/128264377> .
<http://webisa.webdatacommons.org/128264377>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<medhelp.org> .