About: http://webisa.webdatacommons.org/437442438

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	Other gases can also be present with the hydrogen, such as inert gases, so long as the other gases do not react with the hydrogen.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es