<http://webisa.webdatacommons.org/prov/335054766>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/253402104> .
<http://webisa.webdatacommons.org/253402104>	<http://www.w3.org/ns/prov#value>	"Mechanical window: A term for a product, usually vinyl, in which the corners are assembled using screws or other fastening mechanisms, as opposed to a welded corner construction." .
<http://webisa.webdatacommons.org/253402104>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/253402104>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<donyoungwindows.com> .