text: SELECT t.FirstName
         + ' '
  	   + t.LastName AS [Full Name],
  	   s.[Name] 
  	   + '-'
  	   + CAST(s.Lessons AS VARCHAR) AS [Subjects],
  	   COUNT (st.StudentId) AS [Students]
  	   FROM Teachers AS t
  INNER JOIN Subjects AS s
      ON s.Id = t.SubjectId
  INNER JOIN StudentsTeachers AS st
      ON st.TeacherId = t.Id
  GROUP BY FirstName,LastName, Lessons, s.Name
  ORDER BY Students DESC, [Full Name] ASC, [Subjects] ASC