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<http://webisa.webdatacommons.org/360332388>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/360332388>	<http://www.w3.org/ns/prov#value>	"In order to accurately measure properties such as wavelengths, absorption of wavelengths, defects in lenses, prisms, and flat plates, spectrophotometers, and interferometers." .
<http://webisa.webdatacommons.org/prov/284548408>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/360332388> .