query: SELECT T1.role_description FROM ROLES AS T1 JOIN Employees AS T2 ON T1.role_code = T2.role_code WHERE T2.employee_name = "Koby";
question: What is the role of the employee named Koby?
query_toks: SELECT T1.role_description FROM ROLES AS T1 JOIN Employees AS T2 ON T1.role_code = T2.role_code WHERE T2.employee_name = `` Koby '' ;
query_toks_no_value: select t1 . role_description from roles as t1 join employees as t2 on t1 . role_code = t2 . role_code where t2 . employee_name = value
question_toks: What is the role of the employee named Koby?