5620
We use an iterative procedure which alternates between clustering and training discriminative classifiers , while applying careful cross-validation at each step to prevent overfitting .
 cross-validation, overfitting
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
Answer:
 cross-validation, overfitting