Character data of a word or phrase in a document is designated. Desired
data is retrieved from a predetermined database on the basis of the designated
character data. One sentence including at least the designated character data is
cut out and subjected to sentence analysis. On the basis of a sentence analysis
result, specific data is selected from the retrieval result acquired from the database.
In addition, character data of a word or phrase in a document is designated. One
sentence including at least the designated character data is cut out and subjected
to sentence analysis to extract a keyword. A retrieval condition is prepared on
the basis of the extracted keyword, and desired data is retrieved from a predetermined
database on the basis of the retrieved conditional expression.
