user: Question: How many samples were taken of 嬰幼兒配方乳粉2段基粉 ?
Columns: ['Producer', 'Product', 'Samples taken', 'Samples failed', 'Melamine content(mg/kg)']
Types: ['text', 'text', 'real', 'real', 'text']
Sample row: ['Shijiazhuang Sanlu Group', '三鹿牌嬰幼兒配方乳粉', 11.0, 11.0, '2563']
SQL:

assistant: SELECT SUM("Samples taken") FROM "Table" WHERE "Product" = '嬰幼兒配方乳粉2段基粉';