<http://webisa.webdatacommons.org/prov/422091709>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/142061258> .
<http://webisa.webdatacommons.org/142061258>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ck12.org> .
<http://webisa.webdatacommons.org/142061258>	<http://www.w3.org/ns/prov#value>	"Lubricants such as oil or grease may be used to coat the moving parts of a machine so they slide over each other more easily." .
<http://webisa.webdatacommons.org/prov/262655383>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/142061258> .
<http://webisa.webdatacommons.org/142061258>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .