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 Meta River is a major left tributary of the Orinoco River in eastern Colombia and western Venezuela South America. It is formed in the Meta Department Colombia by the confluence of the Humea Guatiquia and Guayuriba rivers. It flows east-northeastward across the Llanos Orientales plains of Colombia through an ancient fault.
Question: The document can be classified to which topic?
Options: 1)NaturalPlace, 2)Village, 3)MeanOfTransportation, 4)Company, 5)EducationalInstitution
1

Context: Omnipotent Government: The Rise of the Total State and Total War is a book by Austrian School economist Ludwig von Mises first published in 1944 by Yale University Press. It is one of the most influential writings in Libertarian social thought and critique of statist ideology and socialism examining the rise of Nazism as an example. The book treats Nazism as a species of orthodox socialist theory.
Question: The document can be classified to which topic?
Options: 1)Film, 2)Artist, 3)Athlete, 4)WrittenWork, 5)NaturalPlace
4

Context: All 6's and 7's is the eleventh studio album by American rapper Tech N9ne. The album was released on June 7 2011 on Strange Music. The album sold 55715 copies in its first week of release and debuted at number 4 on the Billboard 200 and peaked at number 1 on the Billboard Rap Albums chart.
Question: The document can be classified to which topic?
Options: 1)Athlete, 2)EducationalInstitution, 3)MeanOfTransportation, 4)Company, 5)Album
5