About: http://webisa.webdatacommons.org/335079436

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 that has a 24 hour cycle, rising to highest levels during sleep.
http://www.w3.org/ns/prov#wasQuotedFrom	itmonline.org