Which species show a negative result with both voges-proskauer and indole?
CREATE TABLE table_20541 (
    "Species" text,
    "Indole" text,
    "Methyl Red" text,
    "Voges-Proskauer" text,
    "Citrate" text
)
SELECT "Species" FROM table_20541 WHERE "Voges-Proskauer" = 'Negative' AND "Indole" = 'Negative'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Which species show a negative result with both voges-proskauer and indole? ### Input: CREATE TABLE table_20541 (
    "Species" text,
    "Indole" text,
    "Methyl Red" text,
    "Voges-Proskauer" text,
    "Citrate" text
) ### Response: SELECT "Species" FROM table_20541 WHERE "Voges-Proskauer" = 'Negative' AND "Indole" = 'Negative'