About: http://webisa.webdatacommons.org/236354600

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	FIG. 2 is a graph showing how the requirements for different oxygen concentration depending upon altitude, for breathing gas, varies.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com