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_name_15 ( floors INTEGER, street_address VARCHAR )

### Question ###
How many floors are there at 32 n. main street?

### Accurate SQL ###

SELECT SUM(floors) FROM table_name_15 WHERE street_address = "32 n. main street"