<http://webisa.webdatacommons.org/177387767>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com.au> .
<http://webisa.webdatacommons.org/177387767>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/177387767>	<http://www.w3.org/ns/prov#value>	"FIG. 5 is a schematic of the coordinate system corresponding to the equations which define the lens elements of the present invention." .
<http://webisa.webdatacommons.org/prov/213990852>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/177387767> .