About: http://webisa.webdatacommons.org/78199459

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	Four states, three of them in the arid northwest, had fewer than ten persons per square kilometer in 1990, and another thirteen states, mostly in the north, had density levels between ten and fifty persons per square kilometer.
http://www.w3.org/ns/prov#wasQuotedFrom	photius.com