Who is the company's highest-paid single female employee? Include her full name and job title.
full name = FirstName+MiddleName+LastName; highest-paid refers to max(Rate); single refers to Status = 'S'; female refers to Gender = 'F';
SELECT T3.FirstName, T3.MiddleName, T3.LastName, T1.JobTitle FROM Employee AS T1 INNER JOIN EmployeePayHistory AS T2 ON T1.BusinessEntityID = T2.BusinessEntityID INNER JOIN Person AS T3 ON T2.BusinessEntityID = T3.BusinessEntityID WHERE T1.MaritalStatus = 'S' AND T1.Gender = 'F' ORDER BY T2.Rate DESC LIMIT 1