user: Question: Which species has a Voges-Proskauer reading of Negative and an indole reading of Negative?
Columns: ['Species', 'Indole', 'Methyl Red', 'Voges-Proskauer', 'Citrate']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Escherichia coli', 'Positive', 'Positive', 'Negative', 'Negative']
SQL:

assistant: SELECT "Species" FROM "Table" WHERE "Voges-Proskauer" = 'Negative' AND "Indole" = 'Negative';