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<http://webisa.webdatacommons.org/81757720>	<http://www.w3.org/ns/prov#value>	"In high school, there is a steep decline in sleep hours, and a striking correlation of sleep and grades." .
<http://webisa.webdatacommons.org/81757720>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<typepad.com> .
<http://webisa.webdatacommons.org/prov/118474159>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/81757720> .