user: Question: Who was Silva's Partner in the Amarante Tournament played on a Hard Surface?
Columns: ['Date', 'Tournament', 'Surface', 'Partner', 'Opponent in the final', 'Score']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['23 June 2002', 'Montemor-o-Novo', 'Hard', 'Carlota Santos', 'Alberta Brianti & Frederica Piedade', '6–4, 6–2']
SQL:

assistant: SELECT "Partner" FROM "Table" WHERE "Surface" = 'Hard' AND "Tournament" = 'Amarante';