user: ### NOW ANSWER:
Question: What is the number of Last Runners-up that has the club name of Dempo SC?
Columns: ['Club', 'Wins', 'Last Win', 'Runners-up', 'Last Runners-up']
Types: ['text', 'real', 'text', 'real', 'real']
Sample row: ['Mohun Bagan AC', 14.0, '2000-01', 10.0, 1987.0]
SQL:

assistant: SELECT SUM("Last Runners-up") FROM "Table" WHERE "Club" = 'Dempo SC';