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_1140073_2 ( race VARCHAR, pole_position VARCHAR, location VARCHAR )

### Question ###
What race had Nelson Piquet on the pole and was in N rburgring?

### Accurate SQL ###

SELECT race FROM table_1140073_2 WHERE pole_position = "Nelson Piquet" AND location = "Nürburgring"