<http://webisa.webdatacommons.org/340259275>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/340259275>	<http://www.w3.org/ns/prov#value>	"Some thought the rays were a wave traveling through a mysterious ether which they thought permeated all space." .
<http://webisa.webdatacommons.org/prov/245940590>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/340259275> .
<http://webisa.webdatacommons.org/340259275>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<pbs.org> .