| 摘要 |
<P>PROBLEM TO BE SOLVED: To vary an answer sentence outputted to a visitor according to whether the visitor visits a user on important business or not. <P>SOLUTION: This information output device has: a morpheme acquisition part 420 acquiring first morpheme information on the basis of input information inputted by the visitor; a decision part 371 deciding whether a keyword meaning that the visitor visits the user on the important business is included in the first morpheme information or not; a retrieval part 360 retrieving retrieval second morpheme information information on the basis of the first morpheme information and each second morpheme information; and an answer sentence acquisition part 370 acquiring a first content sentence related to the keyword or a second content sentence unrelated to the keyword, as the answer sentence to the visitor. <P>COPYRIGHT: (C)2004,JPO |
