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Ideally , these are basic vocabulary units suitable for different tasks , such as speech and text understanding , machine translation , information retrieval , and statistical language modeling .
 these, tasks; speech and text understanding, tasks; speech and text understanding, machine translation; machine translation, tasks; machine translation, information retrieval; information retrieval, tasks; information retrieval, statistical language modeling; statistical language modeling, 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:
 these, tasks; speech and text understanding, tasks; speech and text understanding, machine translation; machine translation, tasks; machine translation, information retrieval; information retrieval, tasks; information retrieval, statistical language modeling; statistical language modeling, tasks