About: http://webisa.webdatacommons.org/198607696

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	....a number of factors, such as the difficulty of achieving high air flow rates and good circulation of air in the cabin and vulnerability of the heat exchanger to freezing-blockage when high rates of water flow are used.
http://www.w3.org/ns/prov#wasQuotedFrom	nasa.gov