| 摘要 |
A hook section (210) hooks the fact that an information communication function (100) has communicated textual information. When the hook section (210) hooks communication of textual information, a keyword extraction section (240) reads the textual information that has been communicated, and extracts a keyword or keywords stored in a keyword storage section (220) from the textual information that has been read. From the keyword(s) extracted by the keyword extraction section (240), a commitment creation section (250) creates new commitment information representing a commitment that is newly registered by a commitment management function (300), or revised commitment information representing revision of a commitment that has already been registered. A commitment updating section (260) compares the commitments managed by the commitment management function (300) with the commitment information that has been compiled, and inputs the comparison result to the commitment management function (300).
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