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The preliminary experiments prove that the s-VSM model outperforms the VSM model in the lyric-based song sentiment classification task .
 s-VSM model, VSM model; lyric-based song sentiment classification task, s-VSM model; lyric-based song sentiment classification task, VSM model
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:
 s-VSM model, VSM model; lyric-based song sentiment classification task, s-VSM model; lyric-based song sentiment classification task, VSM model