input: Write a function to filter numbers greater than 5 from a list.
  assert filter_greater_than_five([1, 2, 3, 6, 7, 8]) == [6, 7, 8]
  assert filter_greater_than_five([0, 5, 10, 15, 20]) == [10, 15, 20]
  assert filter_greater_than_five([2, 4, 6, 8, 10]) == [6, 8, 10]
output: def filter_greater_than_five(lst):
      return [x for x in lst if x > 5]