About: http://webisa.webdatacommons.org/10172087

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	Fortifications, especially enclosing walls, are common features in large African political centers and have been widely studied (Connah 1975; Ozanne 1969; Posnansky 1969; Soper and Darling 1980:61-81).
http://www.w3.org/ns/prov#wasQuotedFrom	ccsu.edu