About: http://webisa.webdatacommons.org/232963390

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	here is a sample:RETESTSChemistry -- A spectrometer measures elements in steel such as carbon, manganese, phosphorus, sulfur, silicon and aluminum.Hardness -- A hard-tipped indenter is pressed into a steel sample.
http://www.w3.org/ns/prov#wasQuotedFrom	mercurynews.com