| 摘要 |
Information relating to content such as a broadcast program is collected from a wide range of sources. Upon input of content-identifying information, which is information specifying content, a content-affiliated information acquisition unit ( 2 ) acquires content-affiliated information, which is information that is affiliated to the content indicated by the content-identifying information, from sources such as EPG. A content-related text group collection unit ( 3 ), based on the content-affiliated information, collects content-related text groups, which are text groups that relate to the content, from text group information sources ( 1 ) that store text groups relating to various content, examples of these text group information sources ( 1 ) including electronic bulletin boards and home pages connected to the Internet.
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