About: http://webisa.webdatacommons.org/330763118

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Melatonin is a hormone naturally produced by the brain???s pineal gland in response to darkness, and it is also available as a man-made supplement.
http://www.w3.org/ns/prov#wasQuotedFrom	prweb.com