In what country is the El Hamada area of operation? 
CREATE TABLE table_13150274_1 (country VARCHAR, area_of_operation VARCHAR)
SELECT country FROM table_13150274_1 WHERE area_of_operation = "El Hamada"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_13150274_1 (country VARCHAR, area_of_operation VARCHAR) Question: In what country is the El Hamada area of operation?  [/INST] SELECT country FROM table_13150274_1 WHERE area_of_operation = "El Hamada" </s>