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_31 ( area__km_2__ INTEGER, most_spoken_language VARCHAR, place VARCHAR )

### Question ###
What is the lowest area for cannonvale that speaks afrikaans?

### Accurate SQL ###

SELECT MIN(area__km_2__) FROM table_name_31 WHERE most_spoken_language = "afrikaans" AND place = "cannonvale"