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_54 (n_africa_rank VARCHAR, year VARCHAR, cplp_rank VARCHAR)

### Question ###
What's the n Africa in 2012 with an N/A as the CPLP?

### Accurate SQL ###

SELECT n_africa_rank FROM table_name_54 WHERE year = 2012 AND cplp_rank = "n/a"