<http://webisa.webdatacommons.org/prov/462281658>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/176291819> .
<http://webisa.webdatacommons.org/176291819>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/176291819>	<http://www.w3.org/ns/prov#value>	"For instance, it is sometime desirable to delay release of compounds such as superplasticizers, retarders, accelerators, and other additives." .
<http://webisa.webdatacommons.org/176291819>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .