How many unique working areas are there in the CUSTOMER table?
{
    "explanation": "I finalized the SQL query by analyzing the schema and context provided. The question asks for the number of unique working areas in the CUSTOMER table. I used the CUSTOMER table and applied the DISTINCT keyword to get unique working areas. I also used the GROUP BY clause to group the results by the working area.",
    "query" : "SELECT DISTINCT CUSTOMER.WORKING_AREA FROM CUSTOMER GROUP BY CUSTOMER.WORKING_AREA",
    "operation_kind" : "aggregation",
    "schema": "CUSTOMER",
    "confidence" : "100",
    "general_message": "Here is the count of unique working areas in the CUSTOMER table",
    "main_entity" : "customer"
}