About: http://webisa.webdatacommons.org/200877127

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 how the logic works: Many sluggers of the era took steroids, Piazza was a slugger of the era, therefore, Piazza took steroids.
http://www.w3.org/ns/prov#wasQuotedFrom	go.com