<http://webisa.webdatacommons.org/prov/56908138>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/6342249> .
<http://webisa.webdatacommons.org/6342249>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<science.gov> .
<http://webisa.webdatacommons.org/6342249>	<http://www.w3.org/ns/prov#value>	"nanotubes are the stiffest material known to date." .
<http://webisa.webdatacommons.org/6342249>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .