user: Question: What is the Dolphins Group?
Columns: ['Team', 'Country', 'Domestic tournament', 'Position', 'Group']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Rajasthan Royals', 'India', '2008 Indian Premier League', 'Winner', 'B']
SQL:

assistant: SELECT "Group" FROM "Table" WHERE "Team" = 'Dolphins';