A system and method for utilizing data stored in an EPG database for modifying advertisement information. Particularly, embodiments of the present invention relates to methods and apparatus for profile modification prior to filling a structure, such as a trench or a via. A contents receiver presents the shared contents list to the contents receiving user, receives at least one shared content from the contents provider through downloading or streaming according to selection of the contents receiving user having acquired the list, and performs it. According to a request associated with the set of original data and from the processing module, the demand paging module selects one or more sets from the multiple sets of compressed data. The wrench also including a handle attached to the second end portion.