About: http://webisa.webdatacommons.org/388021327

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	Humans breathe best when they breathe air that is a mix of nitrogen, oxygen, carbon dioxide, and other gases, in proportions similar to the normal composition of the atmosphere.
http://www.w3.org/ns/prov#wasQuotedFrom	ck12.org