<http://webisa.webdatacommons.org/prov/123147588> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/358165263> . <http://webisa.webdatacommons.org/358165263> <http://www.w3.org/ns/prov#value> "We know that many people experience subtle cognitive changes as they age, but is there any way to maintain or even improve skills such as memory and concentration?" . <http://webisa.webdatacommons.org/358165263> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/358165263> <http://www.w3.org/ns/prov#wasQuotedFrom> <riverwoodsrc.org> . <http://webisa.webdatacommons.org/prov/142343959> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/358165263> .