input: from typing import Dict
  
  def convert_list_to_dict(items_list: List[int]) -> Dict[int, str]:
      """
      Convert a list of integers into a dictionary where each integer is a key, 
      and its corresponding value is a string representation of the integer.
      
      >>> convert_list_to_dict([1, 2, 3, 4])
      {1: 'one', 2: 'two', 3: 'three', 4: 'four'}
      """
output:     number_to_word = {
          1: 'one',
          2: 'two',
          3: 'three',
          4: 'four',
          5: 'five',
          6: 'six',
          7: 'seven',
          8: 'eight',
          9: 'nine',
          10: 'ten'
      }
      
      return {item: number_to_word.get(item, 'unknown') for item in items_list}