About: http://webisa.webdatacommons.org/446443555

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	By tunneling through the sea floor, scientists say, these creatures kept oxygen concentrations at just the right level to allow animals and other complex life to evolve.
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org