<http://webisa.webdatacommons.org/228395716>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/266403077>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/228395716> .
<http://webisa.webdatacommons.org/228395716>	<http://www.w3.org/ns/prov#value>	"In known range finders of this type, the optical element is a mirror having a spherical surface which is reflective in a peripheral region only." .
<http://webisa.webdatacommons.org/228395716>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .