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_12043148_2 (bristol_ VARCHAR, _n_som VARCHAR, somerset VARCHAR)

### Question ###
what is the bristol & n. som where the somerset is ashcott and shapwick?

### Accurate SQL ###

SELECT bristol_ & _n_som FROM table_12043148_2 WHERE somerset = "Ashcott and Shapwick"