About: http://webisa.webdatacommons.org/329142144

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	But even for alcohol, sample surveys have the disadvantage of being fairly expensive, especially if the sample must be large enough to allow estimates for small areas such as counties.
http://www.w3.org/ns/prov#wasQuotedFrom	questia.com