input: Write a function to create a dictionary containing student names and their corresponding marks as key-value pairs. The function should return the dictionary as output. If no data is provided, an empty dictionary should be returned.
  
  def construct_student_marks_dict():
      return {
          "John": 90,
          "Levi": 85,
          "Jill": 95,
          "Sara": 75
      }
  
  assert construct_student_marks_dict() == {
      "John": 90,
      "Levi": 85,
      "Jill": 95,
      "Sara": 75
  }
  
  assert construct_student_marks_dict() == {
      "John": 90,
      "Levi": 85,
      "Jill": 95,
      "Sara": 75
  }
  
  assert construct_student_marks_dict() == {
      "John": 90,
      "Levi": 85,
      "Jill": 95,
      "Sara": 75
  }
  
  assert construct_student_marks_dict() == {
      "John": 90,
      "Levi": 85,
      "Jill": 95,
      "Sara": 75
  }
  
  assert construct_student_marks_dict() == {
      "John": 90,
      "Levi": 85,
      "Jill": 95,
      "Sara": 75
  }
output: def construct_student_marks_dict():
      return {
          "John": 90,
          "Levi": 85,
          "Jill": 95,
          "Sara": 75
      }