<http://webisa.webdatacommons.org/126991669>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/126991669>	<http://www.w3.org/ns/prov#value>	"Alternative embodiments include using shapes other than spheres, using acoustically soft spheres and/or positioning audio sensors in two or more concentric patterns.01-14-2010" .
<http://webisa.webdatacommons.org/prov/122352555>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/126991669> .
<http://webisa.webdatacommons.org/126991669>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<faqs.org> .