About: http://webisa.webdatacommons.org/8349341

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	They argued that the data were derived mostly from commercial sources, which are unrepresentative in terms of age, sex and distribution.
http://www.w3.org/ns/prov#wasQuotedFrom	bjreview.com.cn