6178
Empirical results also demonstrate that -- when given only a crude model and a small number of real-life trials -- our algorithm can obtain near-optimal performance in the real system .
 conjunction: crude model, real-life trials; used for: crude model, algorithm; used for: real-life trials, algorithm
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: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 conjunction: crude model, real-life trials; used for: crude model, algorithm; used for: real-life trials, algorithm