About: http://webisa.webdatacommons.org/359246754

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	In some urban areas of medium to large Chinese cities, such as Shanghai, the percentage of senior citizens among the total population has already exceeded 20 percent.
http://www.w3.org/ns/prov#wasQuotedFrom	jdsupra.com