| 摘要 |
PROBLEM TO BE SOLVED: To provide an interactive information providing system based upon natural sentences. SOLUTION: A user is prompted to input a character string in natural sentence form, a prescribed keyword is obtained by performing prescribed natural language processing as to the character string inputted by the user, and a retrieval condition frame having prescribed retrieval items is generated according to the prescribed keyword, and retrieval from a 1st database is performed according to the generated retrieval condition frame and the retrieval result is presented to the user.
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