About: http://webisa.webdatacommons.org/29149239

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	Often within each factor, there will be a requirement to stratify for variables such as age or gender.
http://www.w3.org/ns/prov#wasQuotedFrom	hindawi.com