About: http://webisa.webdatacommons.org/143677081

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	???I weighed container before and after charging, and including the gas we let out to empty the tube of air, the consumption of hydrogen was 0.4 grams.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com