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_31421 ( "Official name" text, "INE code" real, "Name in Spanish" text, "Name in Basque" text, "Population (2007)" real )

### Question ###
What is the INE code of the municipality whose official name is Berantevilla?

### Accurate SQL ###

SELECT MAX("INE code") FROM table_31421 WHERE "Official name" = 'Berantevilla'