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<http://webisa.webdatacommons.org/171222684>	<http://www.w3.org/ns/prov#value>	"There are several resources for further research, including resources for teachers to extend the information on this interesting site.courtesy of Knovation" .
<http://webisa.webdatacommons.org/171222684>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<techlearning.com> .
<http://webisa.webdatacommons.org/prov/59853765>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/171222684> .