About: http://webisa.webdatacommons.org/15762103

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	The heart and historical city of Vienna, a large part of today's Innere Stadt, was a fortress and surrounded by fields in order to defend itself from potential attackers.
http://www.w3.org/ns/prov#wasQuotedFrom	sensagent.com