How many employees in the Information Service department work the evening shift?
Information Service is a name of department;
SELECT COUNT(T2.BusinessEntityID) FROM Department AS T1 INNER JOIN EmployeeDepartmentHistory AS T2 ON T1.DepartmentID = T2.DepartmentID INNER JOIN Shift AS T3 ON T2.ShiftId = T3.ShiftId WHERE T1.Name = 'Information Services' AND T3.Name = 'Evening'