<http://webisa.webdatacommons.org/122641414>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<oreilly.com> .
<http://webisa.webdatacommons.org/prov/296656127>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/122641414> .
<http://webisa.webdatacommons.org/122641414>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/122641414>	<http://www.w3.org/ns/prov#value>	"an array of activities, such as forums, messaging, quizzes, assignments," .