About: http://webisa.webdatacommons.org/128036129

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	Prolonged amenorrhea is not healthy, and even if the cause is heavy exercise, more than one or two missing periods is a sign that it may be time to cut back.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com