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.

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
3

Context: City Lit is an adult education college in Covent Garden central London offering over 4000 part-time courses in areas such as languages visual arts music drama humanities and more available during the evenings daytimes or weekends.In 2011 City Lit was graded Outstanding by government inspectors Ofsted who were particularly impressed by the college’s active promotion of equality and diversity and how the college encourages and acts upon feedback from students.
Question: The document can be classified to which topic? 
Options: 1)MeanOfTransportation, 2)EducationalInstitution, 3)NaturalPlace, 4)Plant, 5)Building
2

Context: John Rusling Block (born February 15 1935) is a former U.S. Secretary of Agriculture during the President Reagan's administration. He later became a lobbyist.
Question: The document can be classified to which topic? 
Options: 1)Village, 2)Album, 3)Athlete, 4)OfficeHolder, 5)WrittenWork

4