About: http://webisa.webdatacommons.org/95508500

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	Sample was an opportunity sample, not random, but I have seen other A papers for the soc class and they also used a similar sampling for observational stuff.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com