About: http://webisa.webdatacommons.org/209693629

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	Productivity is really hard to measure except in the simplest of cases, especially if we want something very objective and easily countable as the measure.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com