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.

Example Input: Context: In taxonomy Bolbocoleon is a genus of algae in the family Chaetophoraceae.
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)Company, 3)WrittenWork, 4)EducationalInstitution
Example Output: 1

Example Input: Context: El Khoubna (also written El Khobna) is a village in the commune of Taibet in Taibet District Ouargla Province Algeria. The village is located 2.5 kilometres (1.6 mi) northeast of Taibet and 33 kilometres (21 mi) east of Touggourt.
Question: The document can be classified to which topic? 
Options: 1)Animal, 2)Plant, 3)EducationalInstitution, 4)Village, 5)Athlete
Example Output: 4

Example Input: Context: Bridge between East Manchester and Newberry Townships is a historic Pennsylvania (Petit) truss bridge spanning Conewago Creek East Manchester Township and Newberry Township York County Pennsylvania. The bridge was built in 1889 by the Wrought Iron Bridge Company and measures 299 feet (91 m) in overall length. The bridge was taken out of service about 1985 and is located alongside the new bridge.It was added to the National Register of Historic Places in 1988.
Question: The document can be classified to which topic? 
Options: 1)Company, 2)MeanOfTransportation, 3)Building, 4)Plant
Example Output:
3