<http://webisa.webdatacommons.org/prov/251483954>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/154433124> .
<http://webisa.webdatacommons.org/154433124>	<http://www.w3.org/ns/prov#value>	"FIG. 11a is a longitudinal sectional view of a preferred exhalation valve of the present invention." .
<http://webisa.webdatacommons.org/154433124>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/154433124>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .