<http://webisa.webdatacommons.org/prov/81359871>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/321685789> .
<http://webisa.webdatacommons.org/321685789>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/321685789>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nasa.gov> .
<http://webisa.webdatacommons.org/321685789>	<http://www.w3.org/ns/prov#value>	"Nevertheless, it was recognized that here was a method which" .