Given the task definition and input, reply with output. 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: The Gaylord Building constructed in 1838 in the downtown historic district of Lockport Illinois and on the canalside there played a pivotal role in the construction of the Illinois and Michigan Canal. It is on the United States National Register of Historic Places and is one of 29 Historic Sites of the National Trust for Historic Preservation. It is constructed of yellow limestone a common construction material in north central Illinois.
Question: The document can be classified to which topic?
Options: 1)Animal, 2)Building, 3)NaturalPlace, 4)Company, 5)EducationalInstitution
2