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.

Q: Context: Silene uniflora is a species of flowering plant in the pink family known by the common name sea campion.
Question: The document can be classified to which topic? 
Options: 1)Plant, 2)Album, 3)MeanOfTransportation, 4)Village, 5)Building

A: 1
****
Q: Context: The Diving Board is the thirty-first studio album by British singer-songwriter Elton John. It is his thirtieth solo album and the second of his studio releases since 1979's Victim of Love without any of his regular band members. The album was released in the United Kingdom on September 16 2013 and debuted at #3 on the UK album chart his highest charting studio album in that country since 2001's Songs from the West Coast and at #4 on the Billboard 200.
Question: The document can be classified to which topic? 
Options: 1)WrittenWork, 2)Plant, 3)MeanOfTransportation, 4)Athlete, 5)Album

A: 5
****
Q: Context: The Alcan Lynemouth Aluminium Smelter is a mothballed industrial facility near Ashington Northumberland on the coast of North East England 0.65 mi (1.05 km) south of the village of Lynemouth. The smelter is owned by Canadian aluminium company Alcan which is part of Rio Tinto. The smelter was opened in 1974 at a cost of £54 million. It ceased production in March 2012.
Question: The document can be classified to which topic? 
Options: 1)EducationalInstitution, 2)Building, 3)WrittenWork, 4)Artist

A:
2
****