About: http://webisa.webdatacommons.org/150227348

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	Many researchers tried to explain them by theories including magnetic fields, plasma vortices, twisters, alien visitors leaving messages, and love crazed hedgehogs.
http://www.w3.org/ns/prov#wasQuotedFrom	ufocasebook.com