Sentence:Silverwoods set up small distribution points through Southern Ontario where the packaged [e1]milk[/e1] was delivered from the city [e2]dairy[/e2] via large tractor trailers then it was reloaded on smaller route trucks that distributed it to the stores in a certain area surrounding the distribution depot.
 e1: milk. 
 e2 : dairy.
Answer: Entity-Origin(e1,e2)