About: http://webisa.webdatacommons.org/189841198

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	Headaches are a symptom of a number of different conditions of the head and sometimes neck.
http://www.w3.org/ns/prov#wasQuotedFrom	celiaccentral.org