<http://webisa.webdatacommons.org/203334407>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/203334407>	<http://www.w3.org/ns/prov#value>	"sin??=1/n (Equation 1) [0023] (where n is a refractive index of" .
<http://webisa.webdatacommons.org/prov/131633895>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/203334407> .
<http://webisa.webdatacommons.org/203334407>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<faqs.org> .