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.

Ex Input:
Context: Memecylon leucanthum is a species of plant in the Melastomataceae family. It is endemic to Sri Lanka.
Question: The document can be classified to which topic? 
Options: 1)Animal, 2)OfficeHolder, 3)Plant, 4)Athlete

Ex Output:
3


Ex Input:
Context: The Sierra de Lema is a mountainous upland area of Bolívar state Venezuela. Lying north of the Gran Sabana it marks the divide between the drainage basins of the Caroní and Cuyuni Rivers. It is partly within the bounds of Canaima National Park and encompasses a number of prominent tepuis including the entire Los Testigos chain and Ptari Massif. The elevational range of the Sierra de Lema is around 150–1650 metres (490–5410 ft) above sea level.
Question: The document can be classified to which topic? 
Options: 1)NaturalPlace, 2)Building, 3)WrittenWork, 4)Company, 5)OfficeHolder

Ex Output:
1


Ex Input:
Context: Marsh Creek is a 13.0-mile-long (20.9 km) tributary of Pine Creek in Pennsylvania in the United States.Marsh Creek begins in the borough of Wellsboro at the confluence of Kelsey Creek Morris Branch and Charleston Creek. Marsh Creek flows north then west and joins Pine Creek just downstream of Ansonia in Tioga County. A small flood in 1993 ruined a marginal amount of farmland.
Question: The document can be classified to which topic? 
Options: 1)EducationalInstitution, 2)NaturalPlace, 3)Plant, 4)Animal, 5)Album

Ex Output:

2