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_14603057_2 (class_a VARCHAR, class_aAAA VARCHAR, Gregory VARCHAR, Portland VARCHAR)

### Question ###
How many times was there a class A winner when Gregory-Portland was the class AAAA?

### Accurate SQL ###

SELECT COUNT(class_a) FROM table_14603057_2 WHERE class_aAAA = Gregory - Portland