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Owing to the problem of insufficient training data and approximation error introduced by the language model , traditional statistical approaches , which resolve ambiguities by indirectly and implicitly using maximum likelihood method , fail to achieve high performance in real applications .
 conjunction: insufficient training data, approximation error; used for: statistical approaches, ambiguities; used for: maximum likelihood method, statistical approaches
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:  insufficient training data, approximation error; statistical approaches, ambiguities; maximum likelihood method, statistical approaches 
Answer:
 conjunction: insufficient training data, approximation error; used for: statistical approaches, ambiguities; used for: maximum likelihood method, statistical approaches