PROBLEM TO BE SOLVED: To more deepen understandings for terms by visually expressing what type of relationship is present between relevant terms by an encyclopedia browsing server device for receiving terms as headers from a terminal device, and creating an image for an encyclopedia corresponding to the received terms, and for providing the image to the terminal device.;SOLUTION: A server device Sv includes a database for storing terms as headers configuring an encyclopedia and explanatory sentences corresponding to the terms. The server device Sv searches the database in accordance with the terms received from a terminal device (S101, S102), and searches the terms having high relevancy from the explanatory sentences (S103, S104), and extracts the terms having relationships between the searched terms and the terms as headers (S106 to S110), and creates a map image in which the terms as headers, the terms having high relevancy and the terms indicating the relationships are two-dimensionally arrayed as an image for an encyclopedia on the basis of the searched terms and the extracted terms indicating the relationships (S111).;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2016,JPO&INPIT
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