<http://webisa.webdatacommons.org/148431286>	<http://www.w3.org/ns/prov#value>	"Levels that require a feature are the best time to teach that feature." .
<http://webisa.webdatacommons.org/148431286>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<lukew.com> .
<http://webisa.webdatacommons.org/prov/75732416>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/148431286> .
<http://webisa.webdatacommons.org/148431286>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .