Sentence:The foreign [e1]machineguns[/e1], greasegun, and machine gun pistol were in a [e2]box[/e2] about 3 ft long and 2 ft wide, olive drab in color, with white lettering on the box.
 e1: machineguns. 
 e2 : box.
Answer: Content-Container(e1,e2)