5470
metals , on the other hand , reflect these radio waves , a characteristic very cleverly put to use in the walls of the microwave such that no waves escape .
 component whole: walls, microwave
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: walls, microwave