Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_16083989_1 ( species VARCHAR, voges_proskauer VARCHAR, indole VARCHAR )

### Question ###
Which species show a negative result with both voges-proskauer and indole?

### Accurate SQL ###

SELECT species FROM table_16083989_1 WHERE voges_proskauer = "Negative" AND indole = "Negative"