user: Question: For the event held in Tartu, Estonia, what is the name of the runner-up?
Columns: ['Year', 'Venue', 'Winner', 'Runner Up', 'Third Place']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2004.0, 'Ghent, Belgium', 'Kevin Ashman (Eng)', 'Nico Pattyn (Bel)', 'Pat Gibson (Eng)']
SQL:

assistant: SELECT "Runner Up" FROM "Table" WHERE "Venue" = 'Tartu, Estonia';