3811
Traditional machine learning techniques have been applied to this problem with reasonable success , but they have been shown to work well only when there is a good match between the training and test data with respect to topic .
 used for: machine learning techniques, problem
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:
 used for: machine learning techniques, problem