About: http://webisa.webdatacommons.org/69297207

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	You are correct that not every opinion poll shows exactly the same thing, especially over time and when questions are framed differently.
http://www.w3.org/ns/prov#wasQuotedFrom	colorado.edu