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By extensive experiments , we show that our learned representation can significantly boost several video recognition tasks -LRB- retrieval , classification , and highlight detection -RRB- over traditional video representations .
 learned representation, video representations; video recognition tasks, learned representation; video recognition tasks, video representations; retrieval, video recognition tasks; retrieval, classification; classification, video recognition tasks; classification, highlight detection; highlight detection, video recognition tasks
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:
 learned representation, video representations; video recognition tasks, learned representation; video recognition tasks, video representations; retrieval, video recognition tasks; retrieval, classification; classification, video recognition tasks; classification, highlight detection; highlight detection, video recognition tasks