<http://webisa.webdatacommons.org/352070765>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/352070765>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/403625922>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/352070765> .
<http://webisa.webdatacommons.org/prov/281379518>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/352070765> .
<http://webisa.webdatacommons.org/prov/281611015>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/352070765> .
<http://webisa.webdatacommons.org/352070765>	<http://www.w3.org/ns/prov#value>	"However, the invention has been successfully practiced with no shielding gas or with air or oxygen or other gas that can be viewed as reactive." .