input: from typing import Dict, List
  
  def convert_to_dictionary(items: List[int]) -> Dict[int, str]:
      """
      Convert a list of integers to a dictionary where the keys are the integers and the values are their English word equivalents.
      >>> convert_to_dictionary([1, 2, 3, 4])
      {1: 'one', 2: 'two', 3: 'three', 4: 'four'}
      """
      
output:     number_words = {
          1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five',
          6: 'six', 7: 'seven', 8: 'eight', 9: 'nine', 10: 'ten',
          11: 'eleven', 12: 'twelve', 13: 'thirteen', 14: 'fourteen',
          15: 'fifteen', 16: 'sixteen', 17: 'seventeen', 18: 'eighteen',
          19: 'nineteen', 20: 'twenty'
      }
      
      return {item: number_words[item] for item in items if item in number_words}