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_203_148 ( id number, "date" text, "name" text, "nationality" text, "tonnage\n(grt)" number, "fate" text )

### Question ###
the flandria and the patria are ships that both fly under what country 's flag ?

### Accurate SQL ###

SELECT DISTINCT "nationality" FROM table_203_148 WHERE "name" IN ('flandria', 'patria')