<http://webisa.webdatacommons.org/419479545>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<cdc.gov> .
<http://webisa.webdatacommons.org/prov/354199273>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/419479545> .
<http://webisa.webdatacommons.org/419479545>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/419479545>	<http://www.w3.org/ns/prov#value>	"Because they do not burn easily and are good insulating materials, PCBs were used widely as coolants and lubricants in transformers, capacitors, and other electrical equipment." .
<http://webisa.webdatacommons.org/prov/319959151>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/419479545> .