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_1979203_1 ( branding VARCHAR, _virtual_ VARCHAR )

### Question ###
what is the name of the branding where the virtual is 13.1

### Accurate SQL ###

SELECT branding FROM table_1979203_1 WHERE _virtual_ = "13.1"