<http://webisa.webdatacommons.org/72134152>	<http://www.w3.org/ns/prov#value>	"have traditionally been challenging for students, such as chemistry, anatomy" .
<http://webisa.webdatacommons.org/prov/23915515>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/72134152> .
<http://webisa.webdatacommons.org/72134152>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ncdcr.gov> .
<http://webisa.webdatacommons.org/72134152>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .