About: http://webisa.webdatacommons.org/268263519

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	If you have a migraine with aura, you may see things such as stars or zigzag lines or have a temporary blind spot about 30 minutes before the headache starts.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com