<http://webisa.webdatacommons.org/prov/436841091>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/139307980> .
<http://webisa.webdatacommons.org/139307980>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/139307980>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<nas.edu> .
<http://webisa.webdatacommons.org/139307980>	<http://www.w3.org/ns/prov#value>	"Gradual and variable change in mental functions that occurs naturally as people age, not as part of a neurological disease such as Alzheimer's disease, is one of the most challenging health issues encountered by older adults, says a new report from the Institute of Medicine." .