Task: Text Categorization
Input (English): Context: Custom Builder is a trade publication and web site owned by Reed Business Information serving the information needs of firms in the residential building industry.Established in 1991 Custom Builder magazine was originally published bimonthly. From January 2006 a seventh issue in April was added to their editorial calendar.Common topics in the magazine include design ideas business builder solutions and innovations.
Question: The document can be classified to which topic? 
Options: 1)OfficeHolder, 2)Building, 3)EducationalInstitution, 4)WrittenWork, 5)Athlete
Output (English): 4