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<http://webisa.webdatacommons.org/prov/348733877>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/2540435> .
<http://webisa.webdatacommons.org/2540435>	<http://www.w3.org/ns/prov#value>	"Tools characteristic of Web 2.0 such as Facebook, YouTube and Twitter have created an extra source of ???big data???, a term coined as part of a NASA project by Michael Cox and David Ellsworth [1] to describe work involving the visualisation of datasets generated by supercomputers." .