code: def tag_provinces(tokens: List[str]) -> List[Tuple[str, str]]:
      
      province_list = provinces()
  
      output = []
      for token in tokens:
          if token in province_list:
              output.append((token, "B-LOCATION"))
          else:
              output.append((token, "O"))
  
      return output
docs: Recognize Thailand provinces in text
  
      Input is a list of words
      Return a list of tuples
  
      Example::
       >>> text = ['หนองคาย', 'น่าอยู่']
       >>> tag_provinces(text)
       [('หนองคาย', 'B-LOCATION'), ('น่าอยู่', 'O')]