Sentence:The Mapungubwe Collection at the University of Pretoria features remarkable [e1]works[/e1] from the largely forgotten [e2]kingdom[/e2] of Mapungubwe that flourished near the confluence of the Limpopo and Shashe Rivers between 1000 and 1300 AD.
 e1: works. 
 e2 : kingdom.
Answer: Entity-Origin(e1,e2)