user: Question: What is the tournament with a Clay surface and Sofia Shapatava as the opponent?
Columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Opponent', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Winner', '11 August 2003', 'Martina Franca , Italy', 'Clay', 'Darija Jurak', '6–3, 6–1']
SQL:

assistant: SELECT "Tournament" FROM "Table" WHERE "Surface" = 'Clay' AND "Opponent" = 'Sofia Shapatava';