<http://webisa.webdatacommons.org/304179260>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<biomedsearch.com> .
<http://webisa.webdatacommons.org/prov/81185199>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/304179260> .
<http://webisa.webdatacommons.org/304179260>	<http://www.w3.org/ns/prov#value>	"The oxygen concentrator is a device that absorbs nitrogen from ambient air, with a resultant oxygen concentration of 85 to 95% at different flow rates." .
<http://webisa.webdatacommons.org/304179260>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .