About: http://webisa.webdatacommons.org/420087964

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	In your case, where the cities are greyed out and you can not initiate the mission, the target AI civ is a democracy -- democracies are immune to propaganda.
http://www.w3.org/ns/prov#wasQuotedFrom	civfanatics.com