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_51434 ( "Athlete" text, "Event" text, "Round of 32" text, "Round of 16" text, "Quarterfinal" text, "Semifinal" text, "Final" text )

### Question ###
When the round of 32 was n/a and quarterfinal was did not advance, what was the round of 16?

### Accurate SQL ###

SELECT "Round of 16" FROM table_51434 WHERE "Quarterfinal" = 'did not advance' AND "Round of 32" = 'n/a'