About: http://webisa.webdatacommons.org/150395759

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	Gallup's 1965 poll found that only 28 percent considered air pollution to be a serious problem, while only 35 percent thought water pollution was a serious problem.
http://www.w3.org/ns/prov#wasQuotedFrom	mackinac.org