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 Mill Creek is a 19-mile (31 km) long tributary of Lake Erie in Erie County in the U.S. state of Pennsylvania. It flows from Millcreek Township through the city of Erie into Presque Isle Bay. Much of the creek in the city was channeled into the Mill Creek Tube which was constructed after the Mill Creek's disastrous flood struck the city in 1915.
Question: The document can be classified to which topic? 
Options: 1)Athlete, 2)NaturalPlace, 3)Animal, 4)WrittenWork, 5)OfficeHolder
[EX A]: 2

[EX Q]: Context: Thyrsodium is a genus of plant in family Anacardiaceae. Species include: Thyrsodium herrerense Encarnacion
Question: The document can be classified to which topic? 
Options: 1)WrittenWork, 2)Plant, 3)Animal, 4)Artist, 5)MeanOfTransportation
[EX A]: 2

[EX Q]: Context: Ángel Reinaldo Orué Echeverría (Spanish pronunciation: [aˈnxel oˈrwe] born 5 January 1989) is a Paraguayan footballer that currently plays for Primera División club Nacional in Paraguay as a forward. Emerged from Libertad youth ranks he debuted in 2009 and the following season was part of the squad that won its fifteenth league title. In mid–2011 after a regular season he left the Asunción based–club for Santiago Wanderers in Chile but after another unsuccessful spell he joined Nacional.
Question: The document can be classified to which topic? 
Options: 1)Building, 2)EducationalInstitution, 3)MeanOfTransportation, 4)Company, 5)Athlete
[EX A]:
5