พนักงานชื่อโคบี้มีหน้าที่อะไร?
What is the role of the employee named Koby?
roles = pd.DataFrame(columns=['role_description', 'role_code']); employees = pd.DataFrame(columns=['role_code', 'employee_name'])
roles.loc[roles['role_code'] == employees.loc[employees['employee_name'] == 'Koby', 'role_code'].values[0], 'role_description'].values[0]