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_name_81 (links VARCHAR, flight_day VARCHAR)

### Question ###
What links were used on flight day 16?

### Accurate SQL ###

SELECT links FROM table_name_81 WHERE flight_day = "day 16"