| 摘要 |
When a user clicks and references a title from titles displayed in a thread on an electronic bulletin board, a control unit instructs an electronic bulletin board information generating unit to generate electronic bulletin board information including a main text and an image of a comment and transmits the electronic bulletin board information to a user terminal. When the user sends a reply of a new image or an edited image, identification information is provided to the transmitted image and the image is stored in an image storage unit. In addition, link information that links the image to the original image is transmitted to an image data version information management unit. In this case, when there is no reply of a comment, the control unit instructs an automatic comment generating unit to generate a comment of a reply of the new image or the edited image. The comment is stored in a comment storage unit and the comment link information is transmitted to a comment link information management unit.
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