<http://webisa.webdatacommons.org/prov/429041391>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/277163724> .
<http://webisa.webdatacommons.org/277163724>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/277163724>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nasa.gov> .
<http://webisa.webdatacommons.org/277163724>	<http://www.w3.org/ns/prov#value>	"Plant fossils are commonly infiltrated by minerals such as silica or calcite, and they often retain organic matter and microstructure. ???That???s a great thing about plant fossils,??? says Boyce. ???Paleobotanists [can] take for granted that we have cellular preservation.???" .
<http://webisa.webdatacommons.org/prov/449648233>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/277163724> .