| 摘要 |
The invention provides a user with a key or a visual clue to a desired content. There is provided a random search mode searching the content randomly when a user has no object for searching the content, and a specific search mode with object or search condition specified. The search condition is randomly generated or the content is extracted regardless of the search condition under the random search mode while the content is extracted based on the search condition such as a media type of the content input by the user or other content attributes.
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