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the top of the electroscope consists of a flat , smooth plate 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 .
 component whole: electroscope, plate
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: component whole, NA, instrument agency, member collection, cause effect, entity destination, content container, message topic, product producer, entity origin 
Text: {0} 
Answer:
 component whole: electroscope, plate