3. An interactive control apparatus that can interact with a plurality of interactive agents, comprising: a computer; an input portion that interprets input information input by a user, based on a recognition lexicon that has been generated in advance; a recognition lexicon generation portion that obtains terms accepted by interactive agents from a group of interactive agents performing a response to a result of said interpretation, regenerates the recognition lexicon by consolidating the accepted terms of each of the interactive agents by excluding duplicate terms from the accepted terms of the interactive agents, generates consolidated and reorganized information associating identifiers of two or more conflicting interactive agents, which accept duplicate terms among the accepted terms of the interactive agents, with those terms, and performs, for each interaction, the obtaining of the accepted terms of the interactive agents, performs as well as the generation of the recognized 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 that obtains 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 generates response output data, wherein the recognition lexicon generation portion generates the recognition lexicon by selecting the accepted terms within a range that does not exceed a predetermined upper limit for the number of terms constituting the recognition lexicon.
3. An interactive control apparatus that can interact with a plurality of interactive agents, comprising: a computer; an input portion that interprets input information input by a user, based on a recognition lexicon that has been generated in advance; a recognition lexicon generation portion that obtains terms accepted by interactive agents from a group of interactive agents performing a response to a result of said interpretation, regenerates the recognition lexicon by consolidating the accepted terms of each of the interactive agents by excluding duplicate terms from the accepted terms of the interactive agents, generates consolidated and reorganized information associating identifiers of two or more conflicting interactive agents, which accept duplicate terms among the accepted terms of the interactive agents, with those terms, and performs, for each interaction, the obtaining of the accepted terms of the interactive agents, performs as well as the generation of the recognized 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 that obtains 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 generates response output data, wherein the recognition lexicon generation portion generates the recognition lexicon by selecting the accepted terms within a range that does not exceed a predetermined upper limit for the number of terms constituting the recognition lexicon. 6. The interactive control apparatus according to claim 3 , wherein the recognition lexicon generation portion further obtains usage frequencies of the interactive agents, and generates the recognition lexicon by selecting the accepted terms based on these usage frequencies.