About: http://webisa.webdatacommons.org/173670143

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	When no information was available on whether a behavior or an event had occurred, such cases were omitted from calculations (for example, from percentage distributions).
http://www.w3.org/ns/prov#wasQuotedFrom	guttmacher.org