<http://webisa.webdatacommons.org/prov/281379522>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/276927588> .
<http://webisa.webdatacommons.org/276927588>	<http://www.w3.org/ns/prov#value>	"The sub medium is an inert gas such as air and nitrogen gas, so that a region of the sub medium is an air hole." .
<http://webisa.webdatacommons.org/prov/281611018>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/276927588> .
<http://webisa.webdatacommons.org/276927588>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/276927588>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .