The present invention relates to an endoprosthesis having a plurality of web rings coupled by connectors, which include two or more essentially parallel struts and a foot extension protruding from one of the struts. A geofeed includes a collection of content, aggregated from various content providers, that is relevant to one or more geographically definable locations. In this process, the respective transfer destination terminals 30 can judge whether or not the transmission of the requested personal information based on the transferred usage policy violates the privacy of the users of the transfer destination terminals 30. In response to the transition of the output signal, the multi-reference circuit provides a different reference signal to the comparator circuit. The adjusted second link cost and the first link cost are analysed to determine an adjusted least cost path in the content delivery network and the adjusted second link cost is selectively output to a routing database to influence routing in the content delivery network. The song search apparatus compares the search word feature information with the sound feature information and the first lyric feature information, and extracts songs characterized by the first lyric feature information and the sound feature information, which have the best similarity to the search word feature information.