user: ### NOW ANSWER:
Question: Which season was there a game with the score of 1:3 played at the venue of national stadium, maldives?
Columns: ['Season', 'Team 1', 'Score', 'Team 2', 'Venue']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2009.0, 'Club Valencia', '1:3', 'PEA', 'National Stadium , Maldives']
SQL:

assistant: SELECT SUM("Season") FROM "Table" WHERE "Score" = '1:3' AND "Venue" = 'national stadium, maldives';