About: http://webisa.webdatacommons.org/234202671

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	So far, scientists estimate its trees and other plants provide between 20 to 50 percent of the world's oxygen as well as ingredients vital to the manufacture of medicine and other products.
http://www.w3.org/ns/prov#wasQuotedFrom	bio-medicine.org