<http://webisa.webdatacommons.org/prov/23808235>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/146819602> .
<http://webisa.webdatacommons.org/146819602>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/146819602>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .
<http://webisa.webdatacommons.org/146819602>	<http://www.w3.org/ns/prov#value>	"However, other filter materials, such as polyester can be used." .