Definition: 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.
Input: Context: The Cana Brava River (Santa Tereza River) is a river of Tocantins state in central Brazil.
Question: The document can be classified to which topic? 
Options: 1)NaturalPlace, 2)WrittenWork, 3)Village, 4)Athlete, 5)Company

1