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 Q]: Context: The Piracuruca River is a river of Piauí state in northeastern Brazil.
Question: The document can be classified to which topic? 
Options: 1)Building, 2)Animal, 3)NaturalPlace, 4)OfficeHolder, 5)WrittenWork
[EX A]: 3

[EX Q]: Context: O'Farrell Community School or O'Farrell Middle (CDE official name) commonly referred to as O'Farrell is a charter school in the Southeast San Diego neighborhood of Encanto serving grades 6-9 in the K-12 American education system. The school opened its doors in the San Diego Unified School District in 1959 with its name chosen in 1957 as Mabel E. O'Farrell Jr. High. It was voted to become a charter school in 1994.
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)Athlete, 3)Village, 4)EducationalInstitution, 5)Album
[EX A]: 4

[EX Q]: Context: Eucalyptus parvula the Small-leaved Gum is a eucalyptus of south eastern Australia. A feature of this plant is the relatively small leaves.It occurs in New South Wales from the locations of Countegany to Kybean.This seldom seen plant is considered rare with a ROTAP rating of 2VCi. The future of this plant is of concern by scientists who consider it endangered by extinction in New South Wales.
Question: The document can be classified to which topic? 
Options: 1)Film, 2)Plant, 3)Athlete, 4)Village
[EX A]:
2