gistfile1.yml

Student:
  john:
    name:     John
  michael:
    name:     Michael
  jane:
    name:     Jane
  linda:
    name:     Linda

Test:
  test1:
    month:    jan
    mark:     10
    Student:  john
  test2:
    month:    feb
    mark:     15
    Student:  john
  test3:
    month:    mar
    mark:     7
    Student:  john
  test4:
    month:    apr
    mark:     12
    Student:  john
  test5:
    month:    jan
    mark:     11
    Student:  michael
  test6:
    month:    feb
    mark:     12
    Student:  michael
  test7:
    month:    mar
    mark:     8
    Student:  michael
  test8:
    month:    apr
    mark:     6
    Student:  michael
  test10:
    month:    jan
    mark:     12
    Student:  jane
  test11:
      month:    feb
      mark:     8
      Student:  jane
  test12:
      month:    mar
      mark:     7
      Student:  jane
  test13:
      month:    apr
      mark:     16
      Student:  jane
  test20:
      month:    jan
      mark:     5
      Student:  linda
  test21:
      month:    feb
      mark:     8
      Student:  linda
  test22:
      month:    mar
      mark:     9
      Student:  linda
  test23:
      month:    apr
      mark:     8
      Student:  linda