<http://webisa.webdatacommons.org/126638981>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/126638981>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<cement.org> .
<http://webisa.webdatacommons.org/prov/102426609>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/126638981> .
<http://webisa.webdatacommons.org/126638981>	<http://www.w3.org/ns/prov#value>	"For buildings such as shopping centers, prestressed concrete is an ideal choice because it provides the span length necessary for flexibility and alteration of the internal structure." .