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: Delpitiya is a village in Sri Lanka. It is located within Central Province.
Question: The document can be classified to which topic? 
Options: 1)EducationalInstitution, 2)Film, 3)WrittenWork, 4)Village, 5)OfficeHolder

Ex Output:
4


Ex Input:
Context: Philbertia alba is a species of sea snail a marine gastropod mollusk in the family Turridae.
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)NaturalPlace, 3)EducationalInstitution, 4)Animal, 5)WrittenWork

Ex Output:
4


Ex Input:
Context: The Metropolitan Transit Authority of Black Hawk County marketed as MET Transit is the primary provider of mass transportation in the cities of Waterloo and Cedar Falls Iowa. The agency was founded in 1972 after the private National City Lines which had operated public transit under contract from the city pulled out of providing fixed routes which led to the city directly taking over this service.
Question: The document can be classified to which topic? 
Options: 1)Company, 2)MeanOfTransportation, 3)Village, 4)Artist, 5)EducationalInstitution

Ex Output:

1