About: http://webisa.webdatacommons.org/310193849

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	Thus, experts debate the validity of assigning additive monetary values to such widely varying elements as air quality, species population, and ecosystem value.
http://www.w3.org/ns/prov#wasQuotedFrom	nap.edu