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To implement the two speech enhancement systems based on real-time VC , one from NAM to a whispered voice and the other from electrolaryngeal speech to a natural voice , we propose several methods for reducing computational cost while preserving conversion accuracy .
 used for: real-time VC, speech enhancement systems; hyponym of: one, speech enhancement systems; conjunction: one, other; hyponym of: other, speech enhancement systems; evaluate for: computational cost, methods; conjunction: computational cost, conversion accuracy; evaluate for: conversion accuracy, methods
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
 Entity Pairs:  real-time VC, speech enhancement systems; one, speech enhancement systems; one, other; other, speech enhancement systems; computational cost, methods; computational cost, conversion accuracy; conversion accuracy, methods 
Answer:
 used for: real-time VC, speech enhancement systems; hyponym of: one, speech enhancement systems; conjunction: one, other; hyponym of: other, speech enhancement systems; evaluate for: computational cost, methods; conjunction: computational cost, conversion accuracy; evaluate for: conversion accuracy, methods