<http://webisa.webdatacommons.org/prov/161307121>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/230172833> .
<http://webisa.webdatacommons.org/230172833>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/156033167>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/230172833> .
<http://webisa.webdatacommons.org/230172833>	<http://www.w3.org/ns/prov#value>	"They can also describe how light bends as it passes through mediums such as glass and water." .
<http://webisa.webdatacommons.org/230172833>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<aerotechnews.com> .