Definition: 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.

Positive Example 1 -
Input: Text: The Mansfield Building Society is a UK building society which has its headquarters in Mansfield Nottinghamshire. It is a member of the Building Societies Association. 
Question: The document can be classified to which topic? Options: 1)Animal, 2)Plant, 3)Building, 4)Company, 5)WrittenWork
Output: 3

Positive Example 2 -
Input: Text:  The third and current HMS Argyll is a Type 23 'Duke' Class frigate. She is currently the oldest serving Type 23 frigate in the Royal Navy. Like all of her class she is named for a British dukedom in this case that of Argyll. 
Question: The document can be classified to which topic? Options: 1)Animal, 2)MeanOfTransportation, 3)Building, 4)Company, 5)WrittenWork
Output: 2

Negative Example 1 -
Input: Text: The Mansfield Building Society is a UK building society which has its headquarters in Mansfield Nottinghamshire. It is a member of the Building Societies Association. 
Question: The document can be classified to which topic? Options: 1)Animal, 2)Plant, 3)Building, 4)Company, 5)WrittenWork
Output: No

Negative Example 2 -
Input: Text:  The third and current HMS Argyll is a Type 23 'Duke' Class frigate. She is currently the oldest serving Type 23 frigate in the Royal Navy. Like all of her class she is named for a British dukedom in this case that of Argyll. 
Question: The document can be classified to which topic? Options: 1)Animal, 2)Plant, 3)Building, 4)Company, 5)WrittenWork
Output: 5

Now complete the following example -
Input: Context: The Tansa River is a small river near Mumbai India and is one of Mumbai's water sources via Tansa Lake. It is embanked by one of the largest masonry dams in the world built in 1892. The embankment is nearly 2 miles long 118 ft (36 m) high and 30 metres thick at the base. The dam has 1.31 cubic kilometres capacity of water retention. The dam has about 38 spillway gates. This article incorporates text from a publication now in the public domain:
Question: The document can be classified to which topic? 
Options: 1)Album, 2)Company, 3)OfficeHolder, 4)NaturalPlace
Output: 


Output: 4