Question: What's the melamine content of 英雄牌嬰幼兒配方乳粉 having more than 1 samples failed?
SQL: SELECT "Melamine content(mg/kg)" FROM "2-18943444-1" WHERE "Samples failed" > 1.0 AND "Product" = '英雄牌嬰幼兒配方乳粉';

Question: What's the most melamine content that has more than 1 samples failed and produced by guangzhou jinding dairy products factory?
SQL: SELECT MAX("Melamine content(mg/kg)") FROM "2-18943444-1" WHERE "Producer" = 'guangzhou jinding dairy products factory' AND "Samples failed" > 1.0;

Question: What's the product that has less than 98.6 melamine content, more than 1 sample failed and took less than 3 samples?
SQL: SELECT "Product" FROM "2-18943444-1" WHERE "Melamine content(mg/kg)" < 98.6 AND "Samples failed" > 1.0 AND "Samples taken" < 3.0;

Question: What the most samples failed for 可淇牌嬰幼兒配方乳粉 and had less than 1 samples taken?
SQL: SELECT MAX("Samples failed") FROM "2-18943444-1" WHERE "Product" = '可淇牌嬰幼兒配方乳粉' AND "Samples taken" < 1.0;

Question: How many samples taken from producer Qingdao Suncare Nutritional Technology with a melamine content less than 53.4?
SQL: SELECT SUM("Samples taken") FROM "2-18943444-1" WHERE "Melamine content(mg/kg)" < 53.4 AND "Producer" = 'Qingdao Suncare Nutritional Technology';