user: Question: What year had a domestic cup of Singapore Cup?
Columns: ['Year', 'League Position', 'League', 'Domestic Cup', 'Cup Position']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['2007-08', '8/13', 'Malaysia Premier League', 'Malaysia FA Cup', 'Round 1']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Domestic Cup" = 'Singapore Cup';