| 摘要 |
A system or the like is provided that is capable of interacting with a user while appropriately eliminating an inconsistency between a user's speech and a recognized speech. According to the interactive system 100 of the present invention, an ith-order query Q<SUB>1 </SUB>for asking a user's meaning is generated based on an ith-order output linguistic unit y<SUB>ki </SUB>related to an ith-order input linguistic unit x<SUB>i </SUB>(i=1, 2, --) included in the recognized speech. Thereby, it is determined whether there is an inconsistency between the user's meaning and the ith-order input linguistic unit xi on the basis of an ith-order response A<SUB>i </SUB>recognized as a user's response to the ith-order query Q<SUB>i</SUB>.
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