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Interdisciplinary evidence from social and cognitive psychology is cited and the prospect of the integration of focus via FDA as a discourse-level construct into speech synthesis systems , in particular , concept-to-speech systems , is also briefly discussed .
 FDA, discourse-level construct; discourse-level construct, speech synthesis systems; concept-to-speech systems, speech synthesis systems
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:
 FDA, discourse-level construct; discourse-level construct, speech synthesis systems; concept-to-speech systems, speech synthesis systems