user: Question: Name the surface when the partner is Carlos Berlocq
Columns: ['Outcome', 'Date', 'Tournament', 'Surface', 'Partner', 'Opponents', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Runner-up', '14 July 2008', 'Croatia Open Umag , Umag, Croatia', 'Clay', 'Carlos Berlocq', 'Michal Mertiňák Petr Pála', '6–2, 3–6, [5–10]']
SQL:

assistant: SELECT "Surface" FROM "Table" WHERE "Partner" = 'Carlos Berlocq';