user: Question: What league is Sun Source in?
Columns: ['Club', 'League/Division', 'Home Ground', 'Location', 'Position in 2012-13']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Sai Kung', 'Fourth Division', 'N/A', 'N/A', '7th, Fourth Division']
SQL:

assistant: SELECT "League/Division" FROM "Table" WHERE "Club" = 'Sun Source';