In this task, you are given a text which is the body of a document. You are given a question and options. Pick the correct number. Don't generate anything else apart from the numbers provided in options.

Context: Sunomata Castle ( Sunomata-jo) is a Japanese castle in Ogaki in Gifu Prefecture. It was constructed by Toyotomi Hideyoshi one of the generals of Oda Nobunaga while they were pressing the Siege of Inabayama Castle in the mid-16th century. Hideyoshi also found a secret path into the castle and they found Saito Tatsuoki. Oda Nobunaga put him in exile as they were victorious in this war. According to legend Sunomata Castle was built overnight.
Question: The document can be classified to which topic?
Options: 1)Film, 2)OfficeHolder, 3)Plant, 4)EducationalInstitution, 5)Building
5