<http://webisa.webdatacommons.org/55599996>	<http://www.w3.org/ns/prov#value>	"When a patient is treated and corrective lenses prescribed by optometrist or other professional, an optician may then be employed to select the proper lens." .
<http://webisa.webdatacommons.org/55599996>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/216401899>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/55599996> .
<http://webisa.webdatacommons.org/55599996>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .