About: http://webisa.webdatacommons.org/19723399

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	Nonobservational error -- Individuals in the target population are systematically excluded from the sample, such as in the example above
http://www.w3.org/ns/prov#wasQuotedFrom	researchconnections.org