About: http://webisa.webdatacommons.org/274242011

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	From time to time that security would be threatened, either by some natural disaster such as fire or flood or earthquake, or attacked by other human beings who coveted the city for themselves or simply wished to plunder its wealth.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com