Sentence:The top of the [e1]electroscope[/e1] consists of a flat, smooth [e2]plate[/e2] of lacquered brass on which another plate of brass rests, separated from it by three minute fragments of glass or shellac, or a film of shellac varnish.
 e1: electroscope. 
 e2 : plate.
Answer: Component-Whole(e2,e1)