<http://webisa.webdatacommons.org/prov/442510195>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/32674146> .
<http://webisa.webdatacommons.org/32674146>	<http://www.w3.org/ns/prov#value>	"Metal oxides, e.g. the lead oxides, are formed at certain quantitative points of oxidation and are distinguished by colours and other qualities." .
<http://webisa.webdatacommons.org/32674146>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/32674146>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<anti-dialectics.co.uk> .