About: http://webisa.webdatacommons.org/439000535

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	Since helium atoms are much smaller than atmospheric air, they can pass through smaller leaks, which might not be flowing heavily enough to detect with the listening device or other devices.
http://www.w3.org/ns/prov#wasQuotedFrom	eichlernetwork.com