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The input by the user is interpreted.
The input by the user is interpreted and the objectives (or speech acts) that are attempted in every turn are assigned to them. The assignment is done by means of a hierarchy of speech acts. The system also makes use of the dialogue context, including references to objects or previous states, and domain reasoning to disambiguate user input and infer their objectives. Clarification dialogues can also be initiated by the system in case the input cannot be disambiguated or if additional information is judged necessary before the system itself can do any reasoning.
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