About: http://webisa.webdatacommons.org/113887314

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	For presidents and other heads of state of Poland during the 20th and 21st centuries, see List of heads of state of Poland.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org