1. An interactive control apparatus that interacts with a plurality of interactive agents, comprising: a computer; an input portion for interpreting information input by a user, based on a recognition lexicon that has been generated in advance; a recognition lexicon generation portion for obtaining terms accepted by each of a plurality of interactive agents performing a response to a result interpreted by the input portion, regenerating the recognition lexicon by consolidating the accepted terms by excluding duplicate terms from the accepted terms, generating, separately from the recognition lexicon, consolidated and reorganized information associating the duplicate terms with identifiers of two or more conflicting interactive agents, which accepted the duplicate terms, performing, for each interaction, the obtaining of the accepted terms, and performing, for each interaction, the generation of the recognition lexicon and the consolidated and reorganized information; an input interpretation portion for selecting one of the interactive agents and assigning the input information to the selected interactive agent, when the input portion interprets a word which exists only in the recognition lexicon and assigning the interpreted result of the input information to an interactive agent corresponding to any of the identifiers of the conflicting interactive agents associated with the input information based upon an importance given to each interactive agent, an importance given to the duplicate term, usage frequency of each interactive agent based upon historical data, and the most recent interactive agent associated with the duplicate term, when the interpreted information input is included in the consolidated and reorganized information and a response output generation portion for obtaining, from the selected interactive agent or the interactive agent corresponding to any of the identifiers of the conflicting interactive agents associated with the input information, a response corresponding to the interpretation result of the input information, and generating response output data.