user: Question: How much is the Singapore Gross for the film that Siu WIng directed?
Columns: ['Date', 'Title', 'Director', 'Producer', 'Production Cost', 'Singapore Gross']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['1999', '1999', '1999', '1999', '1999', '1999']
SQL:

assistant: SELECT "Singapore Gross" FROM "Table" WHERE "Director" = 'Siu WIng';