| 摘要 |
A word meaning explanation request to a word in document data, which is output as speech, is input from a user instruction input unit. When the word meaning explanation request is input, a text analysis unit analyzes already output document data, which is output as speech immediately before the word meaning explanation request is input. A word meaning search unit searches for a word meaning comment corresponding to a word meaning explanation request objective word obtained based on the analysis result. The word meaning comment is output.
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