<http://webisa.webdatacommons.org/9409149>	<http://www.w3.org/ns/prov#value>	"In each section there is a challenge that needs to be overcome." .
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<http://webisa.webdatacommons.org/9409149>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<sfrevu.com> .
<http://webisa.webdatacommons.org/prov/321324782>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/9409149> .